JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank

done Halogen Family Total Questions - 187

• question_answer1)
  The correct order of the thermal stability of hydrogen halides (H -X) is [AIEEE 2005]
  A)
  \[HI>HBr>HCl>HF\] done clear
  B)
  \[HF>HCl>HBr>HI\] done clear
  C)
  \[HCl<HF<HBr<HI\] done clear
  D)
  \[HI>HCl<HF<HBr\] done clear
  View Solution play_arrow

• question_answer2)
  Phosgene is the common name of [CPMT 1974, 86; DPMT 1989; MP PMT 1994]
  A)
  Carbonyl chloride done clear
  B)
  Phosphine done clear
  C)
  Phosphorus oxychloride done clear
  D)
  Phosphorus trichloride done clear
  View Solution play_arrow

• question_answer3)
  The solubility of iodine in water increases in the presence of [CPMT 1973, 74, 78, 86, 89, 91; NCERT 1973; AFMC 1995]
  A)
  Alcohol done clear
  B)
  Chloroform done clear
  C)
  Sodium hydroxide done clear
  D)
  Potassium iodide done clear
  View Solution play_arrow

• question_answer4)
  When thiosulphate ion is oxidised by iodine, which one of the following ion is produced [CPMT 1989; AFMC 1990; CBSE PMT 1996]
  A)
  \[SO_{3}^{2-}\] done clear
  B)
  \[SO_{4}^{2-}\] done clear
  C)
  \[{{S}_{4}}O_{6}^{2-}\] (Tetrathionate) done clear
  D)
  \[{{S}_{2}}O_{6}^{2-}\] done clear
  View Solution play_arrow

• question_answer5)
  Bromine is liberated when an aqueous solution of potassium bromide is treated with [CBSE PMT 1989]
  A)
  \[C{{l}_{2}}\] done clear
  B)
  \[{{I}_{2}}\] done clear
  C)
  Dilute \[{{H}_{2}}S{{O}_{4}}\] done clear
  D)
  \[S{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer6)
  Which of the following has greatest reducing power [CPMT 1984, 88, 89, 94]
  A)
  \[HI\] done clear
  B)
  \[HBr\] done clear
  C)
  \[HCl\] done clear
  D)
  \[HF\] done clear
  View Solution play_arrow

• question_answer7)
  Chlorine was discovered by [BHU 1988]
  A)
  Davy done clear
  B)
  Priestley done clear
  C)
  Rutherford done clear
  D)
  Sheele done clear
  View Solution play_arrow

• question_answer8)
  Bad conductor of electricity is [MP PET/PMT 1988]
  A)
  \[{{H}_{2}}{{F}_{2}}\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[HI\] done clear
  View Solution play_arrow

• question_answer9)
  Which of the following will not occur [MP PET/PMT 1988]
  A)
  \[Fe+{{H}_{2}}S{{O}_{4}}\to FeS{{O}_{4}}+{{H}_{2}}\] done clear
  B)
  \[Cu+2AgN{{O}_{3}}\to Cu{{(N{{O}_{3}})}_{2}}+2Ag\] done clear
  C)
  \[2KBr+{{I}_{2}}\to 2KI+B{{r}_{2}}\] done clear
  D)
  \[CuO+{{H}_{2}}\to Cu+{{H}_{2}}O\] done clear
  View Solution play_arrow

• question_answer10)
  Bromine is obtained on commercial scale from [CPMT 1985]
  A)
  Caliche done clear
  B)
  Carnellite done clear
  C)
  Common salt done clear
  D)
  Cryolite done clear
  View Solution play_arrow

• question_answer11)
  Which one of the halogen acids is a liquid [MP PMT 1985]
  A)
  \[HF\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[HI\] done clear
  View Solution play_arrow

• question_answer12)
  Which one of the following acids is the weakest [MP PMT 1985]
  A)
  \[HClO\] done clear
  B)
  \[HBr\] done clear
  C)
  \[HCl{{O}_{3}}\] done clear
  D)
  \[HCl\] done clear
  View Solution play_arrow

• question_answer13)
  Chlorine reacts with sodium hydroxide under various condition to give [NCERT 1973]
  A)
  Sodium chloride done clear
  B)
  Sodium hypochlorite done clear
  C)
  Sodium chlorate done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer14)
  \[B{{r}_{2}}\] gas turns starch iodide paper [CPMT 1987; AFMC 1987; AMU 1999]
  A)
  Blue done clear
  B)
  Red done clear
  C)
  Colourless done clear
  D)
  Yellow done clear
  View Solution play_arrow

• question_answer15)
  When \[C{{l}_{2}}\] gas is passed through hot and conc. solution of \[KOH\], following compound is formed [CPMT 1971, 79; BVP 2003]
  A)
  \[KCl\] done clear
  B)
  \[KCl{{O}_{3}}\] done clear
  C)
  \[KCl{{O}_{2}}\] done clear
  D)
  \[KCl{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer16)
  Deacon's process is used in the manufacture of [BHU 1979]
  A)
  Bleaching powder done clear
  B)
  Sulphuric acid done clear
  C)
  Nitric acid done clear
  D)
  Chlorine done clear
  View Solution play_arrow

• question_answer17)
  Which of the following is the weakest acid [BHU 1984, 86; CPMT 1988, 2000; MP PMT 1995; MP PET 1989, 90; Kurukshetra CEE 1998; Roorkee 2000; RPMT 2000]
  A)
  \[HF\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[HI\] done clear
  View Solution play_arrow

• question_answer18)
  Which is the most volatile compound [CPMT 1979; AIIMS 1980; DPMT 1982; Kurukshetra CEE 1998; J & K CET 2005; DPMT 2002]
  A)
  \[HF\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[HI\] done clear
  View Solution play_arrow

• question_answer19)
  On boiling an aqueous solution of \[KCl{{O}_{3}}\] with iodine, the following product is obtained [NCERT 1980]
  A)
  \[KI{{O}_{3}}\] done clear
  B)
  \[KCI{{O}_{4}}\] done clear
  C)
  \[KI{{O}_{4}}\] done clear
  D)
  \[KCl\] done clear
  View Solution play_arrow

• question_answer20)
  Colour of iodine solution is disappeared by shaking it with aqueous solution of [CPMT 1979, 81; MP PET/PMT 1988; MP PMT 1986; RPMT 1997, 2002]
  A)
  \[{{H}_{2}}S{{O}_{4}}\] done clear
  B)
  \[N{{a}_{2}}S\] done clear
  C)
  \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\] done clear
  D)
  \[N{{a}_{2}}S{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer21)
  A quick supply of \[C{{l}_{2}}\] gas may be made by reacting crystals of \[KMn{{O}_{4}}\] with a concentrated solution of [CPMT 1973]
  A)
  Potassium chloride done clear
  B)
  Sodium chloride done clear
  C)
  Bleaching powder done clear
  D)
  Hydrochloric acid done clear
  View Solution play_arrow

• question_answer22)
  The strongest acid amongst the following is [IIT 1989]
  A)
  \[HCl{{O}_{4}}\] done clear
  B)
  \[HCl{{O}_{3}}\] done clear
  C)
  \[HCl{{O}_{2}}\] done clear
  D)
  \[HClO\] done clear
  View Solution play_arrow

• question_answer23)
  Iodine deficiency in diet causes
  A)
  Nightblindness done clear
  B)
  Rickets done clear
  C)
  Goitre done clear
  D)
  Beri-beri done clear
  View Solution play_arrow

• question_answer24)
  Which of the following is correct [CPMT 1985]
  A)
  Iodine is a solid done clear
  B)
  Chlorine is insoluble in water done clear
  C)
  Iodine is more reactive than bromine done clear
  D)
  Bromine is more reactive than chlorine done clear
  View Solution play_arrow

• question_answer25)
  When KBr is treated with concentrated \[{{H}_{2}}S{{O}_{4}}\] redish brown gas evolved, gas is [Pb. CET 2003]
  A)
  Mixture of bromine and HBr done clear
  B)
  HBr done clear
  C)
  Bromine done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer26)
  Sea weed is employed as a source of manufacture of [CPMT 1982, 86, 2002; MP PET 2002]
  A)
  \[F\] done clear
  B)
  \[I\] done clear
  C)
  \[Br\] done clear
  D)
  \[Cl\] done clear
  View Solution play_arrow

• question_answer27)
  Which of the following is most active halogen [MP PET 1990]
  A)
  \[C{{l}_{2}}\] done clear
  B)
  \[B{{r}_{2}}\] done clear
  C)
  \[{{I}_{2}}\] done clear
  D)
  \[{{F}_{2}}\] done clear
  View Solution play_arrow

• question_answer28)
  Which of the following represents clear electropositive properties [MP PET/PMT 1988; MP PMT 1991]
  A)
  \[F\] done clear
  B)
  \[Cl\] done clear
  C)
  \[Br\] done clear
  D)
  \[I\] done clear
  View Solution play_arrow

• question_answer29)
  Which statement is false [MP PET 1991]
  A)
  Electronegativity of fluorine is maximum done clear
  B)
  Electron affinity of fluorine is maximum done clear
  C)
  Melting point of fluorine is minimum done clear
  D)
  Boiling point of fluorine is maximum done clear
  View Solution play_arrow

• question_answer30)
  Strongest reducing agent is [MP PMT 1990]
  A)
  \[{{F}^{-}}\] done clear
  B)
  \[C{{l}^{-}}\] done clear
  C)
  \[B{{r}^{-}}\] done clear
  D)
  \[{{I}^{-}}\] done clear
  View Solution play_arrow

• question_answer31)
  Which of the following represents outermost shell electronic configuration of halogens [MP PET 1991; Manipal MEE 1995; MP PMT 1996]
  A)
  \[{{s}^{2}}{{p}^{3}}\] done clear
  B)
  \[{{s}^{2}}{{p}^{6}}\] done clear
  C)
  \[{{s}^{2}}{{p}^{4}}\] done clear
  D)
  \[{{s}^{2}}{{p}^{5}}\] done clear
  View Solution play_arrow

• question_answer32)
  Chlorine can remove [MP PET 1990]
  A)
   \[Br\] from \[NaBr\] solution done clear
  B)
   \[F\] from \[NaF\] solution done clear
  C)
  \[Cl\] from \[NaCl\] solution done clear
  D)
  \[F\] from \[Ca{{F}_{2}}\] solution done clear
  View Solution play_arrow

• question_answer33)
  Hydrolysis of which of the following does not occur [AIIMS 1982]
  A)
  \[VC{{l}_{4}}\] done clear
  B)
  \[TiC{{l}_{4}}\] done clear
  C)
  \[SiC{{l}_{4}}\] done clear
  D)
  \[CC{{l}_{4}}\] done clear
  View Solution play_arrow

• question_answer34)
  Nitric acid converts iodine into [MP PMT 1990]
  A)
  Iodic acid done clear
  B)
  Hydroiodic acid done clear
  C)
  Iodine nitrate done clear
  D)
  Iodine pentaoxide done clear
  View Solution play_arrow

• question_answer35)
  In \[KI\] solution, \[{{I}_{2}}\] readily dissolves and forms [MP PMT 1989; EAMCET 1992]
  A)
  \[{{I}^{-}}\] done clear
  B)
  \[K{{I}_{2}}\] done clear
  C)
  \[KI_{2}^{-}\] done clear
  D)
  \[K{{I}_{3}}\] done clear
  View Solution play_arrow

• question_answer36)
  Which reaction cannot be used for the production of halogen acid [MP PMT 1989]
  A)
  \[2KBr+{{H}_{2}}S{{O}_{4}}\to {{K}_{2}}S{{O}_{4}}+2HBr\] done clear
  B)
  \[NaHS{{O}_{4}}+NaCl\to N{{a}_{2}}S{{O}_{4}}+HCl\] done clear
  C)
  \[NaCl+{{H}_{2}}S{{O}_{4}}\to NaHS{{O}_{4}}+HCl\] done clear
  D)
  \[Ca{{F}_{2}}+{{H}_{2}}S{{O}_{4}}\to CaS{{O}_{4}}+2HF\] done clear
  View Solution play_arrow

• question_answer37)
  In dark, which of the following reacts with hydrogen [MP PMT/PET 1988; Kurukshetra CEE 1998]
  A)
  \[B{{r}_{2}}\] done clear
  B)
  \[{{F}_{2}}\] done clear
  C)
  \[{{I}_{2}}\] done clear
  D)
  \[C{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer38)
  The more activeness of fluorine is due to [MP PMT 1990]
  A)
  F-F bond has less energy done clear
  B)
  \[{{F}_{2}}\] is gas at normal temperature done clear
  C)
  Its electronic bond is maximum done clear
  D)
  F-F bond has more energy done clear
  View Solution play_arrow

• question_answer39)
  Which of the following after reacting with \[KI\] do not remove iodine [MP PET 1989]
  A)
  \[CuS{{O}_{4}}\] done clear
  B)
  \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] done clear
  C)
  \[HN{{O}_{3}}\] done clear
  D)
  \[HCl\] done clear
  View Solution play_arrow

• question_answer40)
  Aqueous solution of which of the following acids cannot be kept in a bottle of glass [MP PET 1989]
  A)
  \[HF\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[HI\] done clear
  View Solution play_arrow

• question_answer41)
  Which of the following pairs is not correctly matched [MP PET 1993]
  A)
  A halogen which is liquid at room temperature?Bromine done clear
  B)
  The most electronegative element?Fluorine done clear
  C)
  The most reactive  halogen?Fluorine done clear
  D)
  The strongest oxidizing halogen?Iodine done clear
  View Solution play_arrow

• question_answer42)
  Iodine is formed when potassium iodide reacts with a solution of [MNR 1984; MP PET/PMT 1998]
  A)
  \[ZnS{{O}_{4}}\] done clear
  B)
  \[CuS{{O}_{4}}\] done clear
  C)
  \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\] done clear
  D)
  \[N{{a}_{2}}S{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer43)
  As the atomic number of halogens increases, the halogens [MP PMT 1991]
  A)
  Lose the outermost electrons less readily done clear
  B)
  Become lighter in colour done clear
  C)
  Become less denser done clear
  D)
  Gain electrons less readily done clear
  View Solution play_arrow

• question_answer44)
  Which statement is correct about halogens [EAMCET 1991]
  A)
  They are all diatomic and form univalent ions done clear
  B)
  They are all capable of exhibiting several oxidation states done clear
  C)
  They are all diatomic and form divalent ions done clear
  D)
  They can mutually displace each other from the solution of their compounds with metals done clear
  View Solution play_arrow

• question_answer45)
  Mark the smallest atom [CPMT 1984, 89]
  A)
  \[F\] done clear
  B)
  \[Cl\] done clear
  C)
  \[Br\] done clear
  D)
  \[I\] done clear
  View Solution play_arrow

• question_answer46)
  Mark the element which shows only one oxidation state [BHU 1988; MP PET 2002]
  A)
  \[F\] done clear
  B)
  \[Cl\] done clear
  C)
  \[Br\] done clear
  D)
  \[I\] done clear
  View Solution play_arrow

• question_answer47)
  Which of the following arrangement for the three halogens \[Cl,\]\[Br\] and \[I\] when placed in the order of their increasing electron affinity is correct [CPMT 1990]
  A)
  \[Cl,\] \[Br,\] \[I\] done clear
  B)
  \[I,\] Br, \[Cl\] done clear
  C)
  \[Br,\] \[Cl,\] \[I\] done clear
  D)
  \[I,\] \[Cl,\] \[Br\] done clear
  View Solution play_arrow

• question_answer48)
  Which of the following is strongest oxidising agent [CPMT 1978, 91, 94; MNR 1990; AMU 1983, 84;   MP PMT 1991, 92, 96; IIT 1992; UPSEAT 2000]
  A)
  \[{{F}_{2}}\] done clear
  B)
  \[C{{l}_{2}}\] done clear
  C)
  \[B{{r}_{2}}\] done clear
  D)
  \[{{I}_{2}}\] done clear
  View Solution play_arrow

• question_answer49)
  Fluorine is a better oxidising agent than \[B{{r}_{2}}\]. It is due to [EAMCET 1992]
  A)
  Small size of fluorine done clear
  B)
  More electron repulsion in fluorine done clear
  C)
  More electronegativity of fluorine done clear
  D)
  Non-metallic nature of fluorine done clear
  View Solution play_arrow

• question_answer50)
  Fluorine is a stronger oxidising agent than chlorine in aqueous solution. This is attributed to many factors except [Pb. CET 1989]
  A)
  Heat of dissociation done clear
  B)
  Electron affinity done clear
  C)
  Heat of hydration done clear
  D)
  Ionisation potential done clear
  View Solution play_arrow

• question_answer51)
  Mark the element which displaces three halogens from their compounds [MP PMT 1980, 82; BHU 1984; NCERT 1987]
  A)
  \[F\] done clear
  B)
  \[Cl\] done clear
  C)
  \[Br\] done clear
  D)
  \[I\] done clear
  View Solution play_arrow

• question_answer52)
  Which one of the following is the most basic [CPMT 1975, 77; MP PMT 2001]
  A)
  \[I\] done clear
  B)
  \[Br\] done clear
  C)
  \[Cl\] done clear
  D)
  \[F\] done clear
  View Solution play_arrow

• question_answer53)
  Which of the following will displace the halogen from the solution of the halide [EAMCET 1979]
  A)
  \[B{{r}_{2}}\] added to \[NaCl\] solution done clear
  B)
  \[C{{l}_{2}}\] added to \[KCl\] solution done clear
  C)
  \[KCl\] added to \[NaF\] solution done clear
  D)
  \[B{{r}_{2}}\] added to \[KI\] solution done clear
  View Solution play_arrow

• question_answer54)
  Fluorine does not form positive oxidation states because [AIIMS 1987]
  A)
  It is most electronegative element done clear
  B)
  It forms only anions in ionic compounds done clear
  C)
  It cannot form multiple bonding done clear
  D)
  It shows non-bonded electron pair repulsion due to small size done clear
  View Solution play_arrow

• question_answer55)
  In the isolation of fluorine, a number of difficulties were encountered. Which statement is correct [NCERT 1983, 86]
  A)
  The potential required for the discharge of the fluoride ions is the lowest done clear
  B)
  Fluorine reacts with most glass vessels done clear
  C)
  Fluorine has great affinity for hydrogen done clear
  D)
  Electrolysis of aqueous \[HF\] gives ozonised oxygen done clear
  View Solution play_arrow

• question_answer56)
  Fluorine reacts with water to give [BHU 1988, 89]
  A)
  \[HF\] and \[{{O}_{2}}\] done clear
  B)
  \[HF\] and \[O{{F}_{2}}\] done clear
  C)
  \[HF\] and \[{{O}_{3}}\] done clear
  D)
  \[HF,{{O}_{2}}\] and \[{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer57)
  In which of the following, oxygen has + 2 oxidation number [EAMCET 1986]
  A)
  \[{{F}_{2}}O\] done clear
  B)
  \[C{{l}_{2}}O\] done clear
  C)
  \[N{{a}_{2}}{{O}_{2}}\] done clear
  D)
  \[N{{a}_{2}}O\] done clear
  View Solution play_arrow

• question_answer58)
  The electrolysis of a certain liquid resulted in the formation of hydrogen at the cathode and chlorine at the anode. The liquid is [EAMCET 1979]
  A)
  Pure water done clear
  B)
  \[{{H}_{2}}S{{O}_{4}}\] solution done clear
  C)
  \[NaCl\]solution in water done clear
  D)
  \[CuC{{l}_{2}}\] solution in water done clear
  View Solution play_arrow

• question_answer59)
  In the preparation of chlorine from \[HCl,\] \[Mn{{O}_{2}}\] acts as [CPMT 1981]
  A)
  Oxidising agent done clear
  B)
  Reducing agent done clear
  C)
  Catalytic agent done clear
  D)
  Dehydrating agent done clear
  View Solution play_arrow

• question_answer60)
  Chlorine gas is dried over [CPMT 1980]
  A)
  \[CaO\] done clear
  B)
  \[NaOH\] done clear
  C)
  \[KOH\] done clear
  D)
  Conc. \[{{H}_{2}}S{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer61)
  Chlorine can be manufactured from [CPMT 1989]
  A)
  Electrolysis of \[NaCl\] done clear
  B)
  Electrolysis of brine done clear
  C)
  Electrolysis of bleaching powder done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer62)
  When chlorine water is exposed to sunlight, \[{{O}_{2}}\] is liberated. Hence [AFMC 1989]
  A)
  Hydrogen has little affinity to \[{{O}_{2}}\] done clear
  B)
  Hydrogen has more affinity to \[{{O}_{2}}\] done clear
  C)
  Hydrogen has more affinity to \[C{{l}_{2}}\] done clear
  D)
  It is a reducing agent done clear
  View Solution play_arrow

• question_answer63)
  When cold \[NaOH\] reacts with \[C{{l}_{2}}\] which of the following is formed [AFMC 1992]
  A)
  \[NaClO\] done clear
  B)
  \[NaCl{{O}_{2}}\] done clear
  C)
  \[NaCl{{O}_{3}}\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer64)
  Chlorine is used in water for [CBSE PMT 1988]
  A)
  Killing germs done clear
  B)
  Prevention of pollution done clear
  C)
  Cleansing done clear
  D)
  Removing dirt done clear
  View Solution play_arrow

• question_answer65)
  Chlorine cannot be used [MP PET/PMT 1988]
  A)
  As bleaching agent done clear
  B)
  In sterilisation done clear
  C)
  In preparation of antiseptic done clear
  D)
  For extraction of silver and copper done clear
  View Solution play_arrow

• question_answer66)
  Chlorine acts as a bleaching agent only in presence of [IIT 1983; DCE 2002]
  A)
  Dry air done clear
  B)
  Moisture done clear
  C)
  Sunlight done clear
  D)
  Pure oxygen done clear
  View Solution play_arrow

• question_answer67)
  Euchlorine is a mixture of [CPMT 1988]
  A)
  \[C{{l}_{2}}\] and \[S{{O}_{2}}\] done clear
  B)
  \[C{{l}_{2}}\] and \[Cl{{O}_{2}}\] done clear
  C)
  \[C{{l}_{2}}\] and \[CO\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer68)
  A gas reacts with \[CaO\], but not with \[NaHC{{O}_{3}}\]. The gas is [AFMC 1987]
  A)
  \[C{{O}_{2}}\] done clear
  B)
  \[C{{l}_{2}}\] done clear
  C)
  \[{{N}_{2}}\] done clear
  D)
  \[{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer69)
  When chlorine is passed over dry slaked lime at room temperature, the main reaction product is [CBSE PMT 1992]
  A)
  \[Ca{{(Cl{{O}_{2}})}_{2}}\] done clear
  B)
  \[CaC{{l}_{2}}\] done clear
  C)
  \[CaOC{{l}_{2}}\] done clear
  D)
  \[Ca{{(OC{{l}_{2}})}_{2}}\] done clear
  View Solution play_arrow

• question_answer70)
  Bromine is obtained commercially from sea water by adding [CPMT 1988]
  A)
  \[AgN{{O}_{3}}\] solution done clear
  B)
  Crystals of \[NaBr\] done clear
  C)
  \[C{{l}_{2}}\] done clear
  D)
  \[{{C}_{2}}{{H}_{4}}\] done clear
  View Solution play_arrow

• question_answer71)
  In the manufacture of bromine from sea water, the mother liquor containing bromides is treated with [CBSE PMT 1992; MP PMT 2001; BHU 2002; JIPMER 2002]
  A)
  \[C{{O}_{2}}\] done clear
  B)
  \[C{{l}_{2}}\] done clear
  C)
  \[{{I}_{2}}\] done clear
  D)
  \[S{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer72)
  \[B{{r}^{-}}\] is converted into \[B{{r}_{2}}\] by using [CPMT 1987]
  A)
  \[C{{l}_{2}}\] done clear
  B)
  Conc. \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[{{H}_{2}}S\] done clear
  View Solution play_arrow

• question_answer73)
  A salt, which on heating with conc. \[{{H}_{2}}S{{O}_{4}}\] gives violet vapours, is [CPMT 1971]
  A)
  Iodide done clear
  B)
  Nitrate done clear
  C)
  Sulphate done clear
  D)
  Bromide done clear
  View Solution play_arrow

• question_answer74)
  When \[{{I}_{2}}\] is dissolved in \[CC{{l}_{4}}\], the colour that results is [AFMC 1993]
  A)
  Brown done clear
  B)
  Violet done clear
  C)
  Colourless done clear
  D)
  Bluish green done clear
  View Solution play_arrow

• question_answer75)
  Which of the following halogen oxides is ionic [CPMT 1989]
  A)
  \[Cl{{O}_{2}}\] done clear
  B)
  \[Br{{O}_{2}}\] done clear
  C)
  \[{{I}_{2}}{{O}_{5}}\] done clear
  D)
  \[{{I}_{4}}{{O}_{9}}\] done clear
  View Solution play_arrow

• question_answer76)
  \[KI\] when heated with conc. \[{{H}_{2}}S{{O}_{4}}\] gives [MP PET/PMT 1988]
  A)
  \[HI\] done clear
  B)
  \[{{I}_{2}}\] done clear
  C)
  \[HI{{O}_{3}}\] done clear
  D)
  \[KI{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer77)
  The type of bonding in \[HCl\] molecule is [AIIMS 1992]
  A)
  Pure covalent done clear
  B)
  Polar covalent done clear
  C)
  Highly covalent done clear
  D)
  H-bonding done clear
  View Solution play_arrow

• question_answer78)
  \[HCl\] is a gas, but \[HF\] is a low boiling liquid. This is because [EAMCET 1981, 89]
  A)
  \[H-F\] bond is strong done clear
  B)
  \[H-F\] bond is weak done clear
  C)
  The molecules aggregate because of hydrogen bonding in \[HF\] done clear
  D)
  \[HF\] is a weak acid done clear
  View Solution play_arrow

• question_answer79)
  \[HI\] cannot be prepared by the action of conc. \[{{H}_{2}}S{{O}_{4}}\] on \[KI\] because [MNR 1984]
  A)
  \[HI\] is stronger than \[{{H}_{2}}S{{O}_{4}}\] done clear
  B)
  \[HI\] is more volatile than \[{{H}_{2}}S{{O}_{4}}\] done clear
  C)
  \[{{H}_{2}}S{{O}_{4}}\] is an oxidising agent done clear
  D)
  \[{{H}_{2}}S{{O}_{4}}\] forms complex done clear
  View Solution play_arrow

• question_answer80)
  A solution of \[HCl\] in water is good conductor while gaseous hydrogen chloride is not. This is due to the reason that [NCERT 1980]
  A)
  Water is a good conductor of electricity done clear
  B)
  \[HCl\] in water ionizes done clear
  C)
  Gas can not conduct electricity but water can done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer81)
  Sodium chloride when heated with conc. \[{{H}_{2}}S{{O}_{4}}\] and solid potassium dichromate gives [CPMT 1981, 84]
  A)
  Chromic chloride done clear
  B)
  Chromyl chloride done clear
  C)
  Chromous chloride done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer82)
  Hydrogen bonding does not play any role in boiling of [AFMC 1992]
  A)
  \[N{{H}_{3}}\] done clear
  B)
  \[{{H}_{2}}O\] done clear
  C)
  \[HI\] done clear
  D)
  \[{{C}_{2}}{{H}_{5}}OH\] done clear
  View Solution play_arrow

• question_answer83)
  \[HBr\] and \[HI\] reduce sulphuric acid, \[HCl\] can reduce \[KMn{{O}_{4}}\] and \[HF\] can reduce [IIT 1981; MP PET 1993]
  A)
  \[{{H}_{2}}S{{O}_{4}}\] done clear
  B)
  \[KMn{{O}_{4}}\] done clear
  C)
  \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer84)
  Which has the highest molar heat of vaporisation [CPMT 1991]
  A)
  \[HF\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[HI\] done clear
  View Solution play_arrow

• question_answer85)
  Mark the strongest acid [Bihar MEE 1996; MP PET/PMT 1998; NCERT 1974; CPMT 1976, 90]
  A)
  \[HF\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[HI\] done clear
  View Solution play_arrow

• question_answer86)
  Which of the following hydrogen halides has the highest boiling point [AIIMS 1980; DPMT 1983; MP PMT 1989]
  A)
  \[HF\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[Hi\] done clear
  View Solution play_arrow

• question_answer87)
  Hydrogen bonding is present in [MP PMT 1989; DPMT 1990; Roorkee 1995]
  A)
  \[HF\] done clear
  B)
  \[HCl\] done clear
  C)
  \[HBr\] done clear
  D)
  \[HI\] done clear
  View Solution play_arrow

• question_answer88)
  The type of hybrid orbitals used by chlorine atom in \[ClO_{2}^{-}\] is [IIT 1992]
  A)
  \[S{{P}^{3}}\] done clear
  B)
  \[S{{P}^{2}}\] done clear
  C)
  \[SP\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer89)
  Which one is the anhydride of \[HCl{{O}_{4}}\] [AIIMS 1983; BHU 1983; AMU 1984]
  A)
  \[C{{l}_{2}}O\] done clear
  B)
  \[Cl{{O}_{2}}\] done clear
  C)
  \[C{{l}_{2}}{{O}_{6}}\] done clear
  D)
  \[C{{l}_{2}}{{O}_{7}}\] done clear
  View Solution play_arrow

• question_answer90)
  Which of the following halogens is solid at room temperature [MP PET 1999; AFMC 1999]
  A)
  Chlorine done clear
  B)
  Iodine done clear
  C)
  Bromine done clear
  D)
  Fluorine done clear
  View Solution play_arrow

• question_answer91)
  Which of the following chemical contains chlorine [MP PET 1999]
  A)
  Fischer salt done clear
  B)
  Epsom salt done clear
  C)
  Fremy's salt done clear
  D)
  Spirit of salt done clear
  View Solution play_arrow

• question_answer92)
  The element which never acts as reducing agent in a chemical reaction is [Bihar CEE 1995]
  A)
  \[O\] done clear
  B)
  \[Li\] done clear
  C)
  \[F\] done clear
  D)
  \[C\] done clear
  View Solution play_arrow

• question_answer93)
  Concentrated \[HN{{O}_{3}}\] reacts with \[{{I}_{2}}\] to give [IIT 1989; Roorkee 1995; JIPMER 2001]
  A)
  \[HI\] done clear
  B)
  \[HOI\] done clear
  C)
  \[HOI{{O}_{3}}\] done clear
  D)
  \[HOI{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer94)
  The formula of some fluorides are given below. Which of them will combine further with fluorine [NCERT 1977]
  A)
  \[I{{F}_{5}}\] done clear
  B)
  \[NaF\] done clear
  C)
  \[Ca{{F}_{2}}\] done clear
  D)
  \[S{{F}_{5}}\] done clear
  View Solution play_arrow

• question_answer95)
  Which one below is a pseudohalide [AIIMS 1982]
  A)
  \[C{{N}^{-}}\] done clear
  B)
  \[ICl\] done clear
  C)
  \[I{{F}_{5}}\] done clear
  D)
  \[I_{3}^{-}\] done clear
  View Solution play_arrow

• question_answer96)
  Which one is highest melting halide [AIIMS 1982; BHU 1999]
  A)
  \[NaCl\] done clear
  B)
  \[NaBr\] done clear
  C)
  \[NaF\] done clear
  D)
  \[NaI\] done clear
  View Solution play_arrow

• question_answer97)
  The above answer is correct because the chosen halide has [AIIMS 1982]
  A)
  Minimum ionic character done clear
  B)
  Maximum ionic character done clear
  C)
  Highest oxidising power done clear
  D)
  Lowest polarity done clear
  View Solution play_arrow

• question_answer98)
  Which of the following oxidizes \[{{H}_{2}}O\] to oxygen [MP PET 1994]
  A)
  Chlorine done clear
  B)
  Fluorine done clear
  C)
  Bromine done clear
  D)
  Iodine done clear
  View Solution play_arrow

• question_answer99)
  The bleaching action of the bleaching powder is due to the liberation of [MP PMT 1994]
  A)
  Chlorine done clear
  B)
  Molecular oxygen done clear
  C)
  Nascent oxygen done clear
  D)
  Calcium carbonate done clear
  View Solution play_arrow

• question_answer100)
  Which of the following element is extracted commercially by the electrolysis of an aqueous solution of its compound [KCET 2002]
  A)
  Chlorine done clear
  B)
  Bromine done clear
  C)
  Aluminium done clear
  D)
  Calcium done clear
  View Solution play_arrow

• question_answer101)
  The effective component of bleaching powder is ..... of calcium [Kerala (Engg.) 2002]
  A)
  Chlorine done clear
  B)
  Bromine done clear
  C)
  Aluminium done clear
  D)
  Calcium done clear
  View Solution play_arrow

• question_answer102)
  \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}+{{I}_{2}}\to \]Product is [BHU 2003]
  A)
  \[N{{a}_{2}}S\] done clear
  B)
  \[NaI\] done clear
  C)
  \[N{{a}_{2}}{{S}_{4}}{{O}_{6}}\] done clear
  D)
  \[{{S}_{2}}\] done clear
  View Solution play_arrow

• question_answer103)
  Which of the following is prepared by electrolytic method [CBSE PMT 2001]
  A)
  \[Ca\] done clear
  B)
  \[Sn\] done clear
  C)
  \[S\] done clear
  D)
  \[{{F}_{2}}\] done clear
  View Solution play_arrow

• question_answer104)
  Beilstein test is used for [AFMC 1995]
  A)
  \[{{N}_{2}}\] done clear
  B)
  \[Cl\] done clear
  C)
  \[Na\] done clear
  D)
  \[C{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer105)
  Which one will liberate \[B{{r}_{2}}\] from KBr [BVP 2003]
  A)
  \[{{I}_{2}}\] done clear
  B)
  \[S{{O}_{2}}\] done clear
  C)
  HI done clear
  D)
  \[C{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer106)
  Chlorine dioxide is best prepared by passing dry [Kerala PMT 2003]
  A)
  Chlorine gas over hot \[HgO\] done clear
  B)
  Chlorine and oxygen gas over hot pt catalyst done clear
  C)
  Hydrogen chloride and oxygen over silver oxide done clear
  D)
  Hydrogen chloride over phosphorus pentoxide done clear
  E)
  Chlorine over hot silver chlorate done clear
  View Solution play_arrow

• question_answer107)
  The mixture of concentrated HCl and \[HN{{O}_{3}}\] made in 3 : 1 ratio contains [AIIMS 2003]
  A)
  \[Cl{{O}_{2}}\] done clear
  B)
  NOCl done clear
  C)
  \[NC{{l}_{3}}\] done clear
  D)
  \[{{N}_{2}}{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer108)
  On exciting \[C{{l}_{2}}\] molecule by UV light, we get [UPSEAT 2003]
  A)
  Cl done clear
  B)
  \[C{{l}^{+}}\] done clear
  C)
  \[C{{l}^{-}}\] done clear
  D)
  All done clear
  View Solution play_arrow

• question_answer109)
  Which of the following statements is not true [CBSE PMT  2003]
  A)
  HF is a stronger acid than HCl done clear
  B)
  Among halide ions, iodide is the most powerful reducing agent  done clear
  C)
  Fluorine is the only halogen that does not show a variable oxidation state done clear
  D)
  HOCl is a stronger acid than HOBr done clear
  View Solution play_arrow

• question_answer110)
  The correct order of acidic strength [Pb. CET 2004]
  A)
  \[C{{l}_{2}}{{O}_{7}}>S{{O}_{2}}>{{P}_{4}}{{O}_{10}}\] done clear
  B)
  \[{{K}_{2}}>CaO>MgO\] done clear
  C)
  \[C{{O}_{2}}>{{N}_{2}}{{O}_{5}}>S{{O}_{3}}\] done clear
  D)
  \[N{{a}_{2}}O>MgO>A{{l}_{2}}{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer111)
  Halogen acid used in the preparation of aqua regia is [DPMT 2002]
  A)
  HBr done clear
  B)
  HI done clear
  C)
  HCl done clear
  D)
  HF done clear
  View Solution play_arrow

• question_answer112)
  NaOCl is used as a bleaching agent and sterilising agent. It can be synthesized by the action of [RPET 2003]
  A)
  \[NaCl\] with \[{{H}_{2}}O\] done clear
  B)
  \[N{{H}_{4}}Cl\] with NaOH done clear
  C)
  \[C{{l}_{2}}\] with cold and dilute NaOH done clear
  D)
  \[C{{l}_{2}}\] with hot and concentrated NaOH done clear
  View Solution play_arrow

• question_answer113)
  Metal halide which is insoluble in water is [AIIMS 1996]
  A)
  \[AgI\] done clear
  B)
  \[KBr\] done clear
  C)
  \[CaC{{l}_{2}}\] done clear
  D)
  \[AgF\] done clear
  View Solution play_arrow

• question_answer114)
  Which one among the following non-metals liquid at \[{{25}^{o}}C\] [MP PMT 1999]
  A)
  Bromine done clear
  B)
  Carbon done clear
  C)
  Phosphorus done clear
  D)
  Sulphur done clear
  View Solution play_arrow

• question_answer115)
  Bleaching action of chlorine is due to [Bihar CEE 1995]
  A)
  Oxidation done clear
  B)
  Reduction done clear
  C)
  Hydrolysis done clear
  D)
  Its acidic nature done clear
  View Solution play_arrow

• question_answer116)
  Hydrogen iodide cannot be prepared by the action of conc. \[{{H}_{2}}S{{O}_{4}}\] on potassium iodide because [Bihar CEE 1995]
  A)
  \[HI\] is stronger than \[{{H}_{2}}S{{O}_{4}}\] done clear
  B)
  \[HI\] is more volatile than \[{{H}_{2}}S{{O}_{4}}\] done clear
  C)
  \[{{H}_{2}}S{{O}_{4}}\] is an oxidising agent done clear
  D)
  \[{{H}_{2}}S{{O}_{4}}\] forms complex done clear
  View Solution play_arrow

• question_answer117)
  White enamel of our teeth is [Bihar CEE 1995]
  A)
  \[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\] done clear
  B)
  \[Ca{{F}_{2}}\] done clear
  C)
  \[CaC{{l}_{2}}\] done clear
  D)
  \[CaB{{r}_{2}}\] done clear
  View Solution play_arrow

• question_answer118)
  The least active halogen with hydrogen is [DPMT 1996]
  A)
  Cl done clear
  B)
  I done clear
  C)
  Br done clear
  D)
  F done clear
  View Solution play_arrow

• question_answer119)
  Iodine dissolves readily in [BHU 1996]
  A)
  Water done clear
  B)
  Potassium iodide done clear
  C)
  Carbon tetrachloride done clear
  D)
  Alcohol done clear
  View Solution play_arrow

• question_answer120)
  Which one of the following compounds in aqueous solution gives a white precipitate with perchloric acid [EAMCET 1997]
  A)
  \[NaCl\] done clear
  B)
  \[KCl\] done clear
  C)
  \[MgC{{l}_{2}}\] done clear
  D)
  \[FeC{{l}_{3}}\] done clear
  View Solution play_arrow

• question_answer121)
  Which of the following sequence is correct with reference to the oxidation number of iodine [EAMCET 1997]
  A)
  \[{{I}_{2}}>ICl<HI<HI{{O}_{4}}\] done clear
  B)
  \[HI{{O}_{4}}<ICl<{{I}_{2}}<HI\] done clear
  C)
  \[{{I}_{2}}<HI<ICl<HI{{O}_{4}}\] done clear
  D)
  \[HI<{{I}_{2}}<ICl<HI{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer122)
  The correct order of acidic strength is [Pb. PMT 1998; AFMC 1998;KCET 2000; Orissa JEE 2005]
  A)
  \[HF<HCl<HBr<HI\] done clear
  B)
  \[HCl<HBr<HF<HI\] done clear
  C)
  \[HBr<HCl<HI<HF\] done clear
  D)
  \[HI<HBr<HCl<HF\] done clear
  View Solution play_arrow

• question_answer123)
  The chief source of iodine in which it is present as sodium iodate is [JIPMER 1997]
  A)
  Sea weeds done clear
  B)
  Caliche done clear
  C)
  Carnallite done clear
  D)
  Iodine never exists as sodium iodate done clear
  View Solution play_arrow

• question_answer124)
  The lattice energy of the lithium halides is in the following order [Roorkee Qualifying 1998]
  A)
  \[LiF>LiCl>LiBr>LiI\] done clear
  B)
  \[LiCl>LiF>LiBr>LiI\] done clear
  C)
  \[LiBr>LiCl>LiF>LiI\] done clear
  D)
  \[LiI>LiBr>LiCl>LiF\] done clear
  View Solution play_arrow

• question_answer125)
  Which has the strong bond [DCE 2001]
  A)
  F - F done clear
  B)
  F - Cl done clear
  C)
  F - Br done clear
  D)
  Cl - B done clear
  View Solution play_arrow

• question_answer126)
  Iodine and hypo react to produce [DPMT 2001]
  A)
  \[N{{a}_{2}}S\] done clear
  B)
  \[HCl\] done clear
  C)
  \[N{{a}_{2}}{{S}_{4}}{{O}_{6}}\] done clear
  D)
  \[N{{a}_{2}}S{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer127)
  Bleaching powder is correctly represented as [RPMT 1997]
  A)
  \[CaOC{{l}_{2}}\] done clear
  B)
  \[CaO\] done clear
  C)
  \[CaO(Cl)\] done clear
  D)
  \[CaCl(OCl)\] done clear
  View Solution play_arrow

• question_answer128)
  When chlorine reacts with cold and dilute solution of sodium hydroxide, the products obtained are [CBSE PMT 1998]
  A)
  \[C{{l}^{-}}+Cl{{O}^{-}}\] done clear
  B)
  \[C{{l}^{-}}+ClO_{2}^{-}\] done clear
  C)
  \[C{{l}^{-}}+ClO_{3}^{-}\] done clear
  D)
  \[C{{l}^{-}}+ClO_{4}^{-}\] done clear
  View Solution play_arrow

• question_answer129)
  A one litre flask is full of brown bromine vapour. The intensity of brown colour of vapour will not decrease appreciably on adding to the flask some [CBSE PMT 1998]
  A)
  Pieces of marble done clear
  B)
  Carbon disulphide done clear
  C)
  Carbon tetrachloride done clear
  D)
  Animal charcoal powder done clear
  View Solution play_arrow

• question_answer130)
  Which of the following statements is correct [BHU 1997]
  A)
  Only chlorine and bromine form oxy acids done clear
  B)
  All halogens form oxy acids done clear
  C)
  All halogens except fluorine form oxy acids done clear
  D)
  Only iodine form oxy acids done clear
  View Solution play_arrow

• question_answer131)
  When iodine reacts with \[NaF,\] \[NaBr\] and \[NaCl\] [CPMT 1997]
  A)
  It gives mixture of \[{{F}_{2}},\] \[C{{l}_{2}}\] and \[B{{r}_{2}}\] done clear
  B)
  It gives chlorine done clear
  C)
  It gives bromine done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer132)
  Which is the strongest of the following acids [JIPMER 1999]
  A)
  \[HCl{{O}_{4}}\] done clear
  B)
  \[{{H}_{2}}S{{O}_{4}}\] done clear
  C)
  \[HCl\] done clear
  D)
  \[HN{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer133)
  Hydrogen has a tendency to gain one electron to acquire helium configuration. In this respect it resembles [JIPMER 1999]
  A)
  Halogens done clear
  B)
  Actinides done clear
  C)
  Transition elements done clear
  D)
  Alkali metals done clear
  View Solution play_arrow

• question_answer134)
  What is the product obtained in the reaction of \[HgC{{l}_{2}}\] and \[Hg{{(CN)}_{2}}\] [MP PET 2002]
  A)
  \[{{(CN)}_{2}}\] done clear
  B)
  Addition compound \[HgC{{l}_{2}}.\,Hg{{(CN)}_{2}}\] done clear
  C)
  \[Hg(CN)\,Cl\] done clear
  D)
  \[Hg\,[Hg{{(CN)}_{2}}C{{l}_{2}}]\] done clear
  View Solution play_arrow

• question_answer135)
  The weakest acid HX (X = F, Cl, Br, I) is [BHU 2000]
  A)
  \[HF\] done clear
  B)
  HCl done clear
  C)
  \[HBr\] done clear
  D)
  HI done clear
  View Solution play_arrow

• question_answer136)
  Bleaching powder is obtained by passing chlorine on [KCET 2002]
  A)
  Lime stone done clear
  B)
  Quick lime done clear
  C)
  Slaked lime done clear
  D)
  Pure lime done clear
  View Solution play_arrow

• question_answer137)
  Chlorine is liberated, when we heat [AFMC 1998]
  A)
  \[KMn{{O}_{4}}+NaCl\] done clear
  B)
  \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}+Mn{{O}_{2}}\] done clear
  C)
  \[P{{b}_{2}}{{(N{{O}_{3}})}_{4}}+Mn{{O}_{2}}\] done clear
  D)
  \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}+HCl\] done clear
  View Solution play_arrow

• question_answer138)
  Which of the following silver compounds finds maximum use in photography [JIPMER 1999]
  A)
  \[AgCl\] done clear
  B)
  \[AgBr\] done clear
  C)
  \[AgI\] done clear
  D)
  \[AgN{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer139)
  Which of the following halogen does not exhibit positive oxidation state in its compounds [EAMCET 1997; AIIMS 2000]
  A)
  \[Cl\] done clear
  B)
  \[Br\] done clear
  C)
  \[I\] done clear
  D)
  \[F\] done clear
  View Solution play_arrow

• question_answer140)
  Acid strength of oxy acids of chlorine follows the order [AIIMS 2000; CBSE PMT 2005]
  A)
  \[HClO<HCl{{O}_{2}}<HCl{{O}_{3}}<HCl{{O}_{4}}\] done clear
  B)
  \[HCl{{O}_{4}}<HCl{{O}_{3}}<HCl{{O}_{2}}<HClO\] done clear
  C)
  \[HCl{{O}_{4}}<HCl{{O}_{3}}<HClO<HCl{{O}_{2}}\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer141)
  Bleaching powder is obtained by treating chlorine with [Pb. PMT 1999]
  A)
  \[CaO\] done clear
  B)
  \[CaC{{O}_{3}}\] done clear
  C)
  \[CaS{{O}_{4}}\] done clear
  D)
  \[Ca{{(OH)}_{2}}\] done clear
  View Solution play_arrow

• question_answer142)
  Which statement is not true [MP PET 2000]
  A)
  \[Ni\,{{(CO)}_{4}}\] is diamagnetic done clear
  B)
  \[C{{O}_{2}}\] is a stronger Lewis acid than \[Sn{{(OH)}_{2}}\] done clear
  C)
  Graphite conducts electricity whereas diamond does not done clear
  D)
  \[CC{{l}_{4}}\] is hydrolysed whereas \[BC{{l}_{3}}\] is inert done clear
  View Solution play_arrow

• question_answer143)
  Bleaching powder loses its power on keeping for a long time because [KCET 2000]
  A)
  It changes into calcium hypochlorate done clear
  B)
  It changes into calcium chloride and calcium hydroxide done clear
  C)
  It absorbs moisture done clear
  D)
  It changes into calcium chloride and calcium chlorate done clear
  View Solution play_arrow

• question_answer144)
  The compound which forms a dative bond with ammonia [JIPMER 2001]
  A)
  \[CC{{l}_{4}}\] done clear
  B)
  \[BC{{l}_{3}}\] done clear
  C)
  \[MgC{{l}_{2}}\] done clear
  D)
  \[NaCl\] done clear
  View Solution play_arrow

• question_answer145)
  The bleaching action of bleaching powder is due to the formation of [Roorkee 1999]
  A)
  \[CaC{{l}_{2}}\] done clear
  B)
  \[CaS{{O}_{4}}\] done clear
  C)
  \[HClO\] done clear
  D)
  \[Ca{{(Cl{{O}_{3}})}_{2}}\] done clear
  View Solution play_arrow

• question_answer146)
  Fluorine with dilute NaOH gives [MH CET 2000]
  A)
  \[O{{F}_{2}}\] done clear
  B)
  \[{{O}_{3}}\] done clear
  C)
  \[{{O}_{2}}\] done clear
  D)
  \[HF\] and \[{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer147)
  Which is not oxidised by \[Mn{{O}_{2}}\] [DCE 2003]
  A)
  F done clear
  B)
  Cl done clear
  C)
  \[{{I}_{2}}\] done clear
  D)
  \[I\] done clear
  View Solution play_arrow

• question_answer148)
  Bromine water reacts with \[S{{O}_{2}}\] to form [AFMC 1995]
  A)
  \[{{H}_{2}}O\] and \[HBr\] done clear
  B)
  \[{{H}_{2}}S{{O}_{4}}\] and \[HBr\] done clear
  C)
  \[HBr\] and \[S\] done clear
  D)
  \[S\] and \[{{H}_{2}}O\] done clear
  View Solution play_arrow

• question_answer149)
  Which of the following reaction is not feasible [CBSE PMT PMT 2002]
  A)
  \[2KI+B{{r}_{2}}\to 2KBr+{{I}_{2}}\] done clear
  B)
  \[2{{H}_{2}}O+2{{F}_{2}}\to 2HF+{{O}_{2}}\] done clear
  C)
  \[2KBr+{{I}_{2}}\to 2KI+B{{r}_{2}}\] done clear
  D)
  \[2KBr+C{{l}_{2}}\to 2KCl+B{{r}_{2}}\] done clear
  View Solution play_arrow

• question_answer150)
  Which of the following has the lowest solubility [Roorkee 2000]
  A)
  \[Ca{{F}_{2}}\] done clear
  B)
  \[CaC{{l}_{2}}\] done clear
  C)
  \[CaB{{r}_{2}}\] done clear
  D)
  \[Ca{{I}_{2}}\] done clear
  View Solution play_arrow

• question_answer151)
  Which one of the following pairs of substances when mixed, produces chlorine gas at room temperature [IIT 1995]
  A)
  \[NaCl\] and \[Mn{{O}_{2}}\] done clear
  B)
  \[NaCl\] and \[HN{{O}_{3}}\](conc.) done clear
  C)
  \[NaCl\] and \[{{H}_{2}}S{{O}_{4}}\] (conc.) done clear
  D)
  \[HCl\] (conc.) and \[KMn{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer152)
  Concentrated \[{{H}_{2}}S{{O}_{4}}\] cannot be used to prepare \[HBr\] from \[NaBr\], because it [IIT 1995]
  A)
  Reduces \[HBr\] done clear
  B)
  Oxidises \[HBr\] done clear
  C)
  Disproportionates \[HBr\] done clear
  D)
  Reacts slowly with \[NaBr\] done clear
  View Solution play_arrow

• question_answer153)
  Which of the following halides is least stable and has doubtful existence [IIT 1996]
  A)
  \[C{{I}_{4}}\] done clear
  B)
  \[Ge{{I}_{4}}\] done clear
  C)
  \[Sn{{I}_{4}}\] done clear
  D)
  \[Pb{{I}_{4}}\] done clear
  View Solution play_arrow

• question_answer154)
  Chlorine cannot displace [MP PET 1996]
  A)
  Fluorine from \[NaF\] done clear
  B)
  Iodine from \[NaI\] done clear
  C)
  Bromine from \[NaBr\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer155)
  When fluoride is heated with conc. \[{{H}_{2}}S{{O}_{4}}\] and \[Mn{{O}_{2}}\] the gas evolved is [DPMT 2000]
  A)
  \[{{F}_{2}}\] done clear
  B)
  \[SF\] done clear
  C)
  \[HF\] done clear
  D)
  None done clear
  View Solution play_arrow

• question_answer156)
  \[C{{l}_{2}}\] reacts with \[C{{S}_{2}}\] in presence of \[{{I}_{2}}\] catalyst to form [AFMC 1995]
  A)
  \[CHC{{l}_{3}}\] done clear
  B)
  \[CC{{l}_{4}}\] done clear
  C)
  \[{{C}_{2}}{{H}_{5}}Cl\] done clear
  D)
  \[{{C}_{2}}{{H}_{6}}\] done clear
  View Solution play_arrow

• question_answer157)
  Amongst \[LiCl,\,RbCl,\,BeC{{l}_{2}}\] and \[MgC{{l}_{2}}\]. Maximum and minimum ionic character will be shown by the compounds [RPMT 1999]
  A)
  \[LiCl,\,\,MgC{{l}_{2}}\] done clear
  B)
  \[RbCl,\,BeC{{l}_{2}}\] done clear
  C)
  \[RbCl,\,MgC{{l}_{2}}\] done clear
  D)
  \[MgC{{l}_{2}},\,BeC{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer158)
  Which is formed when fluorine react with hot and concentrated sodium hydroxide [CPMT 2000]
  A)
  \[{{O}_{2}}\] done clear
  B)
  \[{{O}_{3}}\] done clear
  C)
  NaO done clear
  D)
  HF done clear
  View Solution play_arrow

• question_answer159)
  Which of the following condition is used to find atomic \[C{{l}_{2}}\] from molecular \[C{{l}_{2}}\] [CPMT 1996]
  A)
  High temperature, high pressure done clear
  B)
  Low temperature, high pressure done clear
  C)
  High temperature, low pressure done clear
  D)
  Low temperature, low pressure done clear
  View Solution play_arrow

• question_answer160)
  Which one is least basic [JIPMER 2000]
  A)
  \[B{{I}_{3}}\] done clear
  B)
  \[BB{{r}_{3}}\] done clear
  C)
  \[BC{{l}_{3}}\] done clear
  D)
  \[B{{F}_{3}}\] done clear
  View Solution play_arrow

• question_answer161)
  On heating \[NaCl+{{K}_{2}}C{{r}_{2}}{{O}_{7}}+\]conc.\[{{H}_{2}}S{{O}_{4}}\], the gas comes out is [JIPMER 2000]
  A)
  \[{{O}_{2}}\] done clear
  B)
  \[C{{l}_{2}}\] done clear
  C)
  \[CrOC{{l}_{2}}\] done clear
  D)
  \[Cr{{O}_{2}}C{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer162)
  Aqua regia is a mixture of [KCET (Med.) 2001]
  A)
  \[3HCl+1HN{{O}_{3}}\] done clear
  B)
  \[{{H}_{3}}P{{O}_{4}}+{{H}_{2}}S{{O}_{4}}\] done clear
  C)
  \[3HN{{O}_{3}}+1HCl\] done clear
  D)
  \[HCl+C{{H}_{3}}COOH\] done clear
  View Solution play_arrow

• question_answer163)
  Unlike other halogens fluorine does not show higher oxidation states because [MP PET 1997]
  A)
  It is highly electronegative done clear
  B)
  It has no d-orbitals done clear
  C)
  Its atomic radius is very small done clear
  D)
  The \[{{F}^{-}}\] ion is stable and isoelectronic with neon done clear
  View Solution play_arrow

• question_answer164)
  Which halogen does not show variable oxidation state [UPSEAT 2003]
  A)
  \[{{F}_{2}}\] done clear
  B)
  \[C{{l}_{2}}\] done clear
  C)
  \[B{{r}_{2}}\] done clear
  D)
  \[{{I}_{2}}\] done clear
  View Solution play_arrow

• question_answer165)
  To purify fluorine gas,  fumes of \[HF\] are removed by [MH CET 2002]
  A)
  Solid \[NaF\] done clear
  B)
  \[{{H}_{2}}\]gas done clear
  C)
  Solid \[KH{{F}_{2}}\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer166)
  Fluorine is prepared by
  A)
  Oxidation of \[HF\] done clear
  B)
  Electrolysis of \[KF\] done clear
  C)
  Electrolysis of fused \[KH{{F}_{2}}\] done clear
  D)
  Decomposition of \[Hg{{F}_{2}}\] done clear
  View Solution play_arrow

• question_answer167)
  Amongst halogens fluorine is most oxidising because
  A)
  Fluorine has highest electron affinity done clear
  B)
  Fluorine is most electronegative done clear
  C)
  Dissociation energy for fluorine molecule is lowest done clear
  D)
  All are correct done clear
  View Solution play_arrow

• question_answer168)
  The alkali metal halides are soluble in water but \[LiF\] is insoluble because
  A)
  It is amphoteric done clear
  B)
  The \[Li-F\] bond is highly ionic done clear
  C)
  Its lattice energy is high done clear
  D)
  \[L{{i}^{+}}\] ion is least hydrated done clear
  View Solution play_arrow

• question_answer169)
  In which of the following pairs does the first gas bleaches flowers by reduction while the second gas does so by oxidation [Manipal MEE 1995]
  A)
  \[CO\] and \[C{{l}_{2}}\] done clear
  B)
  \[S{{O}_{2}}\] and \[C{{l}_{2}}\] done clear
  C)
  \[{{H}_{2}}\] and \[B{{r}_{2}}\] done clear
  D)
  \[N{{H}_{3}}\] and \[S{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer170)
  Which of the following halogens does not form oxyacid [MP PET 1997]
  A)
  Fluorine done clear
  B)
  Chlorine done clear
  C)
  Bromine done clear
  D)
  Iodine done clear
  View Solution play_arrow

• question_answer171)
  Which of the following molecule is theoritically not possible [BHU 2002]
  A)
  \[O{{F}_{4}}\] done clear
  B)
  \[O{{F}_{2}}\] done clear
  C)
  \[S{{F}_{4}}\] done clear
  D)
  \[{{O}_{2}}{{F}_{2}}\] done clear
  View Solution play_arrow

• question_answer172)
  Iodine is released when potassium iodide reacts with [UPSEAT 1999]
  A)
  \[ZnS{{O}_{4}}\] done clear
  B)
  \[CuS{{O}_{4}}\] done clear
  C)
  \[FeS{{O}_{4}}\] done clear
  D)
  \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer173)
  Which of the following is used in the preparation of chlorine [CBSE PMT 1999]
  A)
  \[Only\]\[Mn{{O}_{2}}\] done clear
  B)
  \[OnlyKMn{{O}_{4}}\] done clear
  C)
  Both \[Mn{{O}_{2}}\] and \[KMn{{O}_{4}}\] done clear
  D)
  Either \[Mn{{O}_{2}}\] or \[KMn{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer174)
  Among \[C{{l}^{-}},\] \[B{{r}^{-}},\] \[{{I}^{-}},\] the correct order for being oxidise to dihalogen is [CPMT 1999]
  A)
  \[{{I}^{-}}>C{{l}^{-}}>B{{r}^{-}}\] done clear
  B)
  \[C{{l}^{-}}>B{{r}^{-}}>{{I}^{-}}\] done clear
  C)
  \[{{I}^{-}}>B{{r}^{-}}>C{{l}^{-}}\] done clear
  D)
  \[B{{r}^{-}}>{{I}^{-}}>C{{l}^{-}}\] done clear
  View Solution play_arrow

• question_answer175)
  On heating \[KCl{{O}_{3}}\], we get [CPMT 1999]
  A)
  \[C{{l}_{2}}O\] done clear
  B)
  \[Cl{{O}_{2}}\] done clear
  C)
  \[Cl{{O}_{3}}\] done clear
  D)
  \[C{{l}_{2}}{{O}_{7}}\] done clear
  View Solution play_arrow

• question_answer176)
  For which one of the following properties of halogens the sequence \[F>Cl>Br>I\] holds good [MP PET/PMT 1998]
  A)
  Electron affinity done clear
  B)
  Electronegativity done clear
  C)
  Atomic radius done clear
  D)
  Boiling point done clear
  View Solution play_arrow

• question_answer177)
  Which of the following properties increases on going down from \[F\] to \[I\] in Group VII-A of the periodic table? [MP PMT 1997]
  A)
  Electronegativity done clear
  B)
  Volatile nature done clear
  C)
  Ionic radius done clear
  D)
  Oxidising power done clear
  View Solution play_arrow

• question_answer178)
  Among the halogens, the one which is oxidised by nitric acid is [KCET 2004]
  A)
  Fluorine done clear
  B)
  Iodine done clear
  C)
  Chlorine done clear
  D)
  Bromine done clear
  View Solution play_arrow

• question_answer179)
  The reaction of the type \[2{{X}_{2}}+S\to S{{X}_{4}}\]is shown by sulphur when X is   [DCE 2003]
  A)
  Fluorine or chlorine done clear
  B)
  Chlorine only done clear
  C)
  Chlorine and bromine only done clear
  D)
  \[F,\ Cl,\ Br\] all done clear
  View Solution play_arrow

• question_answer180)
  When \[{{I}_{2}}\]is passed through KCl, KF and KBr solutions  [CPMT 2004]
  A)
  \[C{{l}_{2}}\] and \[B{{r}_{2}}\]are evolved done clear
  B)
  \[C{{l}_{2}}\]is evolved done clear
  C)
  \[C{{l}_{2}},\ B{{r}_{2}}\]and \[{{F}_{2}}\]are evolved done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer181)
  The solubility of \[{{I}_{2}}\] increases in water in the presence of  [Pb. CET 2002]
  A)
  KI done clear
  B)
  \[{{H}_{2}}S{{O}_{4}}\] done clear
  C)
  \[KMn{{O}_{4}}\] done clear
  D)
  \[N{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer182)
  Which of the hydrogen halides forms salts like \[KH{{X}_{2}}\](where X is a halogen atom)  [Kerala PMT 2004]
  A)
  HF done clear
  B)
  HCl done clear
  C)
  HI done clear
  D)
  HBr done clear
  E)
  All of these done clear
  View Solution play_arrow

• question_answer183)
  With cold and dilute sodium hydroxide fluorine reacts to give   [MH CET 2004]
  A)
  \[NaF\] and \[O{{F}_{2}}\] done clear
  B)
  \[NaF+{{O}_{3}}\] done clear
  C)
  \[{{O}_{2}}\ \text{and}\ {{O}_{3}}\] done clear
  D)
  \[NaF+{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer184)
  Which one of the following oxides is expected exhibit paramagnetic behaviour [CBSE PMT 2005]
  A)
  \[C{{O}_{2}}\] done clear
  B)
  \[S{{O}_{2}}\] done clear
  C)
  \[Cl{{O}_{2}}\] done clear
  D)
  \[Si{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer185)
  Of the following acids, the one that is strongest is  [DPMT 2004]
  A)
  \[HBr{{O}_{4}}\] done clear
  B)
  \[HOCl\] done clear
  C)
  \[HN{{O}_{2}}\] done clear
  D)
  \[{{H}_{3}}P{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer186)
  Which of the following is anhydride of perchloric acid [CPMT 2004]
  A)
  \[C{{l}_{2}}{{O}_{7}}\] done clear
  B)
  \[C{{l}_{2}}{{O}_{5}}\] done clear
  C)
  \[C{{l}_{2}}{{O}_{3}}\] done clear
  D)
  \[HClO\] done clear
  View Solution play_arrow

• question_answer187)
  \[{{I}_{2}}\] dissolves in KI solution due to the formation of  [CPMT 2004]
  A)
  \[K{{I}_{2}}\]and \[{{I}^{-}}\] done clear
  B)
  \[{{K}^{+}},{{I}^{-}}\] and \[{{I}_{2}}\] done clear
  C)
  \[KI_{3}^{-}\] done clear
  D)
  None of these done clear
  View Solution play_arrow