JEE Main & Advanced Chemistry Analytical Chemistry Question Bank

done Wet Test for Basic Radical Total Questions - 104

• question_answer1)
  Which sulphide is soluble in \[{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\]
  A)
  \[SnS\] done clear
  B)
  \[A{{s}_{2}}{{S}_{3}}\] done clear
  C)
  \[S{{b}_{2}}{{S}_{3}}\] done clear
  D)
  \[CdS\] done clear
  View Solution play_arrow

• question_answer2)
  When acetic acid and \[{{K}_{4}}Fe{{\left( CN \right)}_{6}}\] is added to a copper salt, a chocolate precipitate is obtained of the compound
  A)
  Copper cyanide done clear
  B)
  Copper ferrocyanide done clear
  C)
  Basic copper sulphate done clear
  D)
  Basic copper cyanide done clear
  View Solution play_arrow

• question_answer3)
  A precipitate of the following would be obtained when \[HCl\] is added to a solution of stannous sulphide \[(SnS)\] in yellow ammonium sulphide [CPMT 1977; NCERT 1974]
  A)
  \[SnS\] done clear
  B)
  \[Sn{{S}_{2}}\] done clear
  C)
  \[S{{n}_{2}}{{S}_{2}}\] done clear
  D)
  \[{{(N{{H}_{4}})}_{2}}Sn{{S}_{3}}\] done clear
  View Solution play_arrow

• question_answer4)
  When \[{{H}_{2}}S\] is passed through in II group sometimes solution becomes milky. It indicates the presence of [MP PMT 1995]
  A)
  Acidic salt done clear
  B)
  An oxidising agent done clear
  C)
  Thiosulphate done clear
  D)
  A reducing agent done clear
  View Solution play_arrow

• question_answer5)
  Conc. \[HN{{O}_{3}}\] is added before proceeding to test for group III members. This is to [NCERT 1974]
  A)
  Oxidise any remaining \[{{H}_{2}}S\] done clear
  B)
  Convert ferrous ion into ferric ion done clear
  C)
  Form nitrates which give granular ppts done clear
  D)
  Increase ionisation of ammonium hydroxide done clear
  View Solution play_arrow

• question_answer6)
  A salt gives bright red colour to the flame. This colour indicates the presence of
  A)
  \[B{{a}^{2+}}\] done clear
  B)
  \[S{{r}^{2+}}\] done clear
  C)
  \[C{{a}^{2+}}\] done clear
  D)
  \[C{{r}^{3+}}\] done clear
  View Solution play_arrow

• question_answer7)
  The compound insoluble in acetic acid is [CPMT 1989]
  A)
  Calcium oxide done clear
  B)
  Calcium carbonate done clear
  C)
  Calcium oxalate done clear
  D)
  Calcium hydroxide done clear
  View Solution play_arrow

• question_answer8)
  Which of the following give white precipitate when \[HCl\] is added to its aqueous solution
  A)
  \[H{{g}^{+}}\] done clear
  B)
  \[M{{g}^{++}}\] done clear
  C)
  \[Z{{n}^{++}}\] done clear
  D)
  \[C{{d}^{++}}\] done clear
  View Solution play_arrow

• question_answer9)
  Of the following sulphides which one is insoluble in dilute acids but soluble in alkalies [CPMT 1990]
  A)
  \[PbS\] done clear
  B)
  \[CdS\] done clear
  C)
  \[FeS\] done clear
  D)
  \[S{{b}_{2}}{{S}_{3}}\] done clear
  View Solution play_arrow

• question_answer10)
  Reagent used in the qualitative analysis of IVth group is
  A)
  \[HCl\] done clear
  B)
  \[{{H}_{2}}S\] (alkaline) done clear
  C)
  \[{{(N{{H}_{4}})}_{2}}S\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer11)
  Which of the following radicals will not be precipitated by passing \[{{H}_{2}}S\] in concentrated acid solution [BHU 1986]
  A)
  Copper done clear
  B)
  Antimony done clear
  C)
  Arsenic done clear
  D)
  Cadmium done clear
  View Solution play_arrow

• question_answer12)
  Which of the following pairs would be expected to form precipitate when solution are mixed [NCERT 1984]
  A)
  \[{{K}^{+}},SO_{4}^{2-}\] done clear
  B)
  \[N{{a}^{+}},{{S}^{2-}}\] done clear
  C)
  \[A{{g}^{+}},NO_{3}^{-}\] done clear
  D)
  \[A{{l}^{3+}},O{{H}^{-}}\] done clear
  View Solution play_arrow

• question_answer13)
  \[{{H}_{2}}S\] will precipitate the sulphides of all the metals from the solution of chlorides of \[Cu,Zn\] and \[Cd,\] if [MP PMT 1985]
  A)
  The solution is aqueous done clear
  B)
  The solution is acidic done clear
  C)
  The solution is dilute acidic done clear
  D)
  Any of these solutions is present done clear
  View Solution play_arrow

• question_answer14)
  Addition of solution of oxalate to an aqueous solution of mixture of \[B{{a}^{++}},S{{r}^{++}}\] and \[C{{a}^{++}}\] will precipitate [MP PMT 1985]
  A)
  \[C{{a}^{++}}\] done clear
  B)
  \[C{{a}^{++}}\] and \[S{{r}^{++}}\] done clear
  C)
  \[B{{a}^{++}}\] and \[S{{r}^{++}}\] done clear
  D)
  All the three done clear
  View Solution play_arrow

• question_answer15)
  Which one among the following pairs of ions cannot be separated by \[{{H}_{2}}S\] in dilute hydrochloric acid [IIT 1986]
  A)
  \[B{{i}^{3+}},S{{n}^{4+}}\] done clear
  B)
  \[A{{l}^{3+}},H{{g}^{2+}}\] done clear
  C)
  \[Z{{n}^{2+}},C{{u}^{2+}}\] done clear
  D)
  \[N{{i}^{2+}},C{{u}^{2+}}\] done clear
  View Solution play_arrow

• question_answer16)
  Distinguishing reagent between silver and lead salts is [MADT Bihar 1984]
  A)
  \[{{H}_{2}}S\] gas done clear
  B)
  Hot dilute \[HCl\] solution done clear
  C)
  \[N{{H}_{4}}Cl\] (solid) + \[N{{H}_{4}}OH\]solution done clear
  D)
  \[N{{H}_{4}}Cl\] (solid) + \[{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\] solution done clear
  View Solution play_arrow

• question_answer17)
  Group reagent for the precipitation of group II basic radicals for the qualitative analysis table is [MADT Bihar 1982]
  A)
  Dil. \[HCl+{{H}_{2}}S\] done clear
  B)
  \[N{{H}_{4}}Cl\] (solid) + \[N{{H}_{4}}OH\] solution +\[{{H}_{2}}S\] done clear
  C)
  \[{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\] solution done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer18)
  The ion that cannot be precipitated by both \[HCl\] and \[{{H}_{2}}S\] is   [IIT 1982; CPMT 1989]
  A)
  \[P{{b}^{2+}}\] done clear
  B)
  \[C{{u}^{+}}\] done clear
  C)
  \[A{{g}^{+}}\] done clear
  D)
  \[S{{n}^{2+}}\] done clear
  View Solution play_arrow

• question_answer19)
  Pb(CH3COO)2 gives?.colour with H­2S [DPMT 2000]
  A)
  Orange done clear
  B)
  Red done clear
  C)
  Black done clear
  D)
  White done clear
  View Solution play_arrow

• question_answer20)
  Fe2+ ion can be distinguished by Fe3+ ion by [DPMT 2000]
  A)
  \[N{{H}_{4}}SCN\] done clear
  B)
  \[AgN{{O}_{3}}\] done clear
  C)
  \[BaC{{l}_{2}}\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer21)
  Which of the following change the colour of the aqueous solution of  \[FeC{{l}_{3}}\] [Roorkee Qualifying 1998]
  A)
  \[{{K}_{4}}\left[ Fe{{\left( CN \right)}_{6}} \right]\] done clear
  B)
  \[{{H}_{2}}S\] done clear
  C)
  \[N{{H}_{4}}CNS\] done clear
  D)
  \[KCNS\] done clear
  View Solution play_arrow

• question_answer22)
  Which of the following substances are soluble in concentrated \[HN{{O}_{3}}\] [Roorkee Qualifying 1998]
  A)
  \[BaS{{O}_{4}}\] done clear
  B)
  \[CuS\] done clear
  C)
  \[PbS\] done clear
  D)
  \[HgS\] done clear
  View Solution play_arrow

• question_answer23)
  Which of the following cannot give iodometric titrations [AIIMS 1997]
  A)
  \[F{{e}^{3+}}\] done clear
  B)
  \[C{{u}^{2+}}\] done clear
  C)
  \[P{{b}^{2+}}\] done clear
  D)
  \[A{{g}^{2+}}\] done clear
  View Solution play_arrow

• question_answer24)
  Which of the following mixture is chromic acid [Pb. PMT 2000]
  A)
  \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] and \[HCl\] done clear
  B)
  \[{{K}_{2}}S{{O}_{4}}\] and conc. \[{{H}_{2}}S{{O}_{4}}\] done clear
  C)
  \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] and conc. \[{{H}_{2}}S{{O}_{4}}\] done clear
  D)
  \[{{H}_{2}}S{{O}_{4}}\]and\[HCl\] done clear
  View Solution play_arrow

• question_answer25)
  Which of the following compounds is brown coloured [AFMC 2001]
  A)
  \[Fe\left[ Fe{{\left( CN \right)}_{4}} \right]\] done clear
  B)
  \[Fe\left[ Fe{{\left( CN \right)}_{6}} \right]\] done clear
  C)
  \[F{{e}_{4}}\left[ Fe{{\left( CN \right)}_{6}} \right]\] done clear
  D)
  \[{{K}_{2}}Fe\left[ Fe{{\left( CN \right)}_{6}} \right]\] done clear
  View Solution play_arrow

• question_answer26)
  If \[N{{a}^{+}}\]ion and \[{{S}^{2-}}\]ion is larger than \[C{{l}^{-}}\]ion, which of the following will be least soluble in water [AMU (Engg.) 1999]
  A)
  \[MgS\] done clear
  B)
  \[NaCl\] done clear
  C)
  \[N{{a}_{2}}S\] done clear
  D)
  \[MgC{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer27)
  An aqueous solution of an inorganic salt on treatment with HCl gives a white precipitate. This solution contains [MP PMT 2001]
  A)
  \[H{{g}_{2}}^{+2}\] done clear
  B)
  \[H{{g}^{2+}}\] done clear
  C)
  \[Z{{n}^{2+}}\] done clear
  D)
  \[C{{d}^{2+}}\] done clear
  View Solution play_arrow

• question_answer28)
  Lead sulphate is soluble [MP PET 1999]
  A)
  In conc. nitric acid done clear
  B)
  In conc. hydrochloric acid done clear
  C)
  In a solution of ammonium acetate done clear
  D)
  In water done clear
  View Solution play_arrow

• question_answer29)
  Which one of the following sulphides is yellow [MP PMT 1999]
  A)
  Zinc sulphide done clear
  B)
  Cadmium sulphide done clear
  C)
  Nickel sulphide done clear
  D)
  Lead sulphide done clear
  View Solution play_arrow

• question_answer30)
  When \[{{H}_{2}}S\]gas is passed through the HCl containing aqueous solutions of \[CuC{{l}_{2}}\], \[HgC{{l}_{2}}\], \[BiC{{l}_{3}}\] and \[CoC{{l}_{2}}\], which does not precipitate out [MP PMT 2002]
  A)
  \[CuS\] done clear
  B)
  \[HgS\] done clear
  C)
  \[B{{i}_{2}}{{S}_{3}}\]­ done clear
  D)
  \[CoS\] done clear
  View Solution play_arrow

• question_answer31)
  Group reagent for analytic group IV is [Kurukshetra CET 2002]
  A)
  \[N{{H}_{4}}Cl+N{{H}_{4}}OH\] done clear
  B)
  \[N{{H}_{4}}Cl+N{{H}_{4}}OH+{{H}_{2}}S~~~~~\] done clear
  C)
  \[N{{H}_{4}}OH+\text{ }{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\] done clear
  D)
  \[HCl+{{H}_{2}}S\] done clear
  View Solution play_arrow

• question_answer32)
  When H2S is passed through Hg2S we get [AIEEE 2002]
  A)
  \[HgS\] done clear
  B)
  \[HgS+H{{g}_{2}}S\] done clear
  C)
  \[H{{g}_{2}}S+Hg\] done clear
  D)
  \[H{{g}_{2}}S\] done clear
  View Solution play_arrow

• question_answer33)
  How do we differentiate between \[F{{e}^{3+}}\]and \[C{{r}^{3+}}\]in group III [AIEEE 2002]
  A)
  By taking excess of \[N{{H}_{4}}OH\] solution done clear
  B)
  By increasing \[N{{H}_{4}}^{+}\]ion concentration done clear
  C)
  By decreasing \[O{{H}^{-}}\]ion concentration done clear
  D)
  Both B and C done clear
  View Solution play_arrow

• question_answer34)
  \[\left[ X \right]\text{ }+{{H}_{2}}S{{O}_{4}}~\left[ Y \right]\]a colorless gas with irritating smell \[\left[ Y \right]\text{ }+{{K}_{2}}C{{r}_{2}}{{O}_{7}}+{{H}_{2}}S{{O}_{4}}green\text{ }solution\] [X] and [Y] is [IIT-JEE (Screening) 2003]
  A)
  \[S{{O}_{3}}^{2-},\ S{{O}_{2}}\] done clear
  B)
  \[C{{I}^{-}},HCI\] done clear
  C)
  \[{{S}^{2-}},\ {{H}_{2}}S\] done clear
  D)
  \[C{{O}_{3}}^{2-},\ C{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer35)
  In the analysis of basic radicals, the group reagent H2S gas is generally used in the groups [MP PMT 2003]
  A)
  I and II groups done clear
  B)
  II and III groups done clear
  C)
  III and V groups done clear
  D)
  II and IV groups done clear
  View Solution play_arrow

• question_answer36)
  A mixture of two salts is not water soluble but dissolves completely in dilute hydrochloric acid to form a colourless solution. The mixture could be [Pb. PMT 1998]
  A)
  \[AgN{{O}_{3}}\] and \[KBr\] done clear
  B)
  \[BaC{{O}_{3}}\] and \[ZnS\] done clear
  C)
  \[FeC{{l}_{3}}\] and \[CaC{{O}_{3}}\] done clear
  D)
  \[Mn{{(N{{O}_{3}})}_{2}}\] and \[MgS{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer37)
  Which of the following is not precipitated as sulphide by passing H2S in presence of conc. HCl [MP PMT 2000]
  A)
  Copper done clear
  B)
  Arsenic done clear
  C)
  Cadmium done clear
  D)
  Lead done clear
  View Solution play_arrow

• question_answer38)
  Concentrated sodium hydroxide can separate a mixture of [MP PMT 2000]
  A)
  \[Z{{n}^{2+}}\]and\[P{{b}^{2+}}\] done clear
  B)
  \[A{{l}^{3+}}\]and\[Z{{n}^{3+}}\] done clear
  C)
  \[C{{r}^{3+}}\]and\[F{{e}^{3+}}\] done clear
  D)
  \[A{{l}^{3+}}\]and\[C{{r}^{3+}}\] done clear
  View Solution play_arrow

• question_answer39)
  \[AgCl\] dissolves in ammonia solution giving [MP PMT 1989; MP PET 2001]
  A)
  \[A{{g}^{+}},NH_{4}^{+}\] and \[C{{l}^{-}}\] done clear
  B)
  \[Ag{{\left( N{{H}_{3}} \right)}^{+}}\] and \[C{{l}^{-}}\] done clear
  C)
  \[A{{g}_{2}}{{\left( N{{H}_{3}} \right)}^{+}}\] and \[C{{l}^{-}}\] done clear
  D)
  \[Ag\left( N{{H}_{3}} \right)_{2}^{+}\] and \[C{{l}^{-}}\] done clear
  View Solution play_arrow

• question_answer40)
  What product is formed by mixing the solution of \[{{K}_{4}}\left[ Fe{{(CN)}_{6}} \right]\] with the solution of \[FeC{{l}_{3}}\] [Roorkee 1989]
  A)
  Ferro-ferricyanide done clear
  B)
  Ferric-ferrocyanide done clear
  C)
  Ferri-ferricyanide done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer41)
  In fifth group, \[{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\] is added to precipitate out the carbonates. We do not add \[N{{a}_{2}}C{{O}_{3}}\] because [AIIMS 1982]
  A)
  \[CaC{{O}_{3}}\] is soluble in \[N{{a}_{2}}C{{O}_{3}}\] done clear
  B)
  \[N{{a}_{2}}C{{O}_{3}}\] increases the solubility of fifth group carbonates done clear
  C)
  \[MgC{{O}_{3}}\] will be precipitated out in fifth group done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer42)
  \[A{{l}^{3+}},\] \[F{{e}^{3+}},\]  \[Z{{n}^{2+}}\]and \[N{{i}^{2+}}\] ions are present in an acidic solution. Excess of ammonium chloride solution is added followed by addition of ammonium hydroxide solution. The available precipitate will contain [MP PMT 1996]
  A)
  \[Zn{{\left( OH \right)}_{2}}\] and \[Ni{{\left( OH \right)}_{2}}\] done clear
  B)
  \[Al{{\left( OH \right)}_{3}}\] and \[Fe{{\left( OH \right)}_{3}}\] done clear
  C)
  \[Zn{{\left( OH \right)}_{2}}\] and \[Al{{\left( OH \right)}_{3}}\] done clear
  D)
  \[Ni{{\left( OH \right)}_{2}}\] and \[Fe{{\left( OH \right)}_{3}}\] done clear
  View Solution play_arrow

• question_answer43)
  When \[{{H}_{2}}S\]is passed through a mixture containing \[C{{u}^{+2}}\], \[N{{i}^{+2}}\], \[Z{{n}^{+2}}\] in acidic solution then ion will precipitate [RPMT 2002]
  A)
  \[C{{u}^{+2}}\], \[N{{i}^{+2}}\] done clear
  B)
  \[N{{i}^{+2}}\] done clear
  C)
  \[C{{u}^{+2}}\], \[Z{{n}^{+2}}\] done clear
  D)
  \[C{{u}^{+2}}\] done clear
  View Solution play_arrow

• question_answer44)
  In the precipitation of the iron group in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to [AIIMS 1980; NCERT 1976; DPMT 1983; CPMT 1971, 73, 77,78, 80, 81, 83, 86; KCET 1999]
  A)
  Decrease concentration of \[O{{H}^{-}}\] ions done clear
  B)
  Prevent interference by phosphate ions done clear
  C)
  Increase concentration of \[C{{l}^{-}}\] ions done clear
  D)
  Increase concentration of \[NH_{4}^{+}\] ions done clear
  View Solution play_arrow

• question_answer45)
  Ferric ion forms a prussian blue coloured ppt. due to [CPMT 1980; BHU 1980; MP PET 1995; Kurukshetra CEE 1998; RPET 1999; MP PMT 2001]
  A)
  \[{{K}_{4}}Fe{{(CN)}_{6}}\] done clear
  B)
  \[F{{e}_{4}}{{\left[ Fe{{(CN)}_{6}} \right]}_{3}}\] done clear
  C)
  \[KMn{{O}_{4}}\] done clear
  D)
  \[Fe{{(OH)}_{3}}\] done clear
  View Solution play_arrow

• question_answer46)
  When \[{{H}_{2}}S\] gas is passed into a certain solution, it reacts to form a white precipitate. The solution referred to contains ions of [EAMCET 1979]
  A)
  Lead done clear
  B)
  Zinc done clear
  C)
  Copper done clear
  D)
  Nickel done clear
  View Solution play_arrow

• question_answer47)
  A precipitate of ....... would be obtained on adding \[HCl\] to a solution of \[\left( S{{b}_{2}}{{S}_{3}} \right)\] in yellow ammonium sulphide [CPMT 1979]
  A)
  \[S{{b}_{2}}{{S}_{3}}\] done clear
  B)
  \[S{{b}_{2}}{{S}_{5}}\] done clear
  C)
  \[SbS\] done clear
  D)
  \[Sb{{S}_{2}}\] done clear
  View Solution play_arrow

• question_answer48)
  A 0.3 M \[HCl\] solution contains the following ions \[H{{g}^{++}},\] \[C{{d}^{++}},\] \[S{{r}^{++}},\] \[F{{e}^{++}},\] \[C{{u}^{++}}\]The addition of \[{{H}_{2}}S\] to above solution will precipitate [CPMT 1973]
  A)
  Cd, Cu and Hg done clear
  B)
  Cd, Fe and Sr done clear
  C)
  Hg, Cu and Fe done clear
  D)
  Cu, Sr and Fe done clear
  View Solution play_arrow

• question_answer49)
  Which of the following gives a ppt. with \[Pb{{\left( N{{O}_{3}} \right)}_{2}}\] but not with \[Ba{{\left( N{{O}_{3}} \right)}_{2}}\] [CPMT 1979; MP PET 1997]
  A)
  \[NaCl\] done clear
  B)
  Sodium acetate done clear
  C)
  Sodium nitrate done clear
  D)
  Sodium hydrogen phosphate done clear
  View Solution play_arrow

• question_answer50)
  On adding excess of ammonium hydroxide to a copper sulphate solution [MP PMT 1995]
  A)
  Blue precipitate of copper hydroxide is obtained done clear
  B)
  Black precipitate of copper oxide is obtained done clear
  C)
  A deep blue solution is obtained done clear
  D)
  No change is observed done clear
  View Solution play_arrow

• question_answer51)
  A black sulphide is formed by the action of \[{{H}_{2}}S\] on [IIT 1978]
  A)
  Cupric chloride done clear
  B)
  Cadmium chloride done clear
  C)
  Zinc chloride done clear
  D)
  Sodium chloride done clear
  View Solution play_arrow

• question_answer52)
  An aqueous solution contains the ions as \[Hg_{2}^{2+},\] \[H{{g}^{2+}},\] \[P{{b}^{2+}},\] and \[C{{d}^{2+}}\]. The addition of dilute \[HCl\left( 6N \right)\] precipitates [IIT 1995]
  A)
  \[H{{g}_{2}}C{{l}_{2}}\] only done clear
  B)
  \[PbC{{l}_{2}}\] only done clear
  C)
  \[PbC{{l}_{2}}\] and \[HgC{{l}_{2}}\] done clear
  D)
  \[H{{g}_{2}}C{{l}_{2}}\] and \[PbC{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer53)
  In the group III radicals, in place of \[N{{H}_{4}}Cl\] which of the following can be used [AIIMS 1980, 82; MP PMT 1985]
  A)
  \[N{{H}_{4}}N{{O}_{3}}\] done clear
  B)
  \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\] done clear
  C)
  \[{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\] done clear
  D)
  \[NaCl\] done clear
  View Solution play_arrow

• question_answer54)
  When \[HCl\] gas is passed through saturated solution of \[BaC{{l}_{2}}\], a white ppt. is obtained. This is due to [CPMT 1979]
  A)
  Impurities in \[BaC{{l}_{2}}\] done clear
  B)
  Impurities in \[HCl\] done clear
  C)
  Precipitation of \[BaC{{l}_{2}}\] done clear
  D)
  Formation of complex done clear
  View Solution play_arrow

• question_answer55)
  Which compound does not dissolve in hot dilute \[HN{{O}_{3}}\] [IIT 1996]
  A)
  \[HgS\] done clear
  B)
  \[PbS\] done clear
  C)
  \[CuS\] done clear
  D)
  \[CdS\] done clear
  View Solution play_arrow

• question_answer56)
  The ion that can be precipitated by \[HCl\] as well as \[{{H}_{2}}S\] is [MP PET 1996; JIPMER (Med.) 2002]
  A)
  \[P{{b}^{2+}}\] done clear
  B)
  \[F{{e}^{3+}}\] done clear
  C)
  \[Z{{n}^{2+}}\] done clear
  D)
  \[C{{u}^{2+}}\] done clear
  View Solution play_arrow

• question_answer57)
  Which of the following sulphate is insoluble in water [MNR 1995]
  A)
  \[CuS{{O}_{4}}\] done clear
  B)
  \[CdS{{O}_{4}}\] done clear
  C)
  \[PbS{{O}_{4}}\] done clear
  D)
  \[Bi{{\left( S{{O}_{4}} \right)}_{3}}\] done clear
  View Solution play_arrow

• question_answer58)
  A solution when treated with dimethyl glyoxime gives a rose red complex. The metal present is [AFMC 1982; BHU 1979]
  A)
  \[Ni\] done clear
  B)
  \[V\] done clear
  C)
  \[Co\] done clear
  D)
  \[Mn\] done clear
  View Solution play_arrow

• question_answer59)
  When bismuth chloride is poured into a large volume of water, the white precipitate produced is [MP PMT 1985; CPMT 1979]
  A)
  \[Bi{{\left( OH \right)}_{3}}\] done clear
  B)
  \[B{{i}_{2}}{{O}_{3}}\] done clear
  C)
  \[BiOCl\] done clear
  D)
  \[B{{i}_{2}}OC{{l}_{3}}\] done clear
  View Solution play_arrow

• question_answer60)
  Mark the compound which turns black with \[N{{H}_{4}}OH\] [AFMC 1981; MP PMT 1995]
  A)
  Lead chloride done clear
  B)
  Mercurous chloride done clear
  C)
  Mercuric chloride done clear
  D)
  Silver chloride done clear
  View Solution play_arrow

• question_answer61)
  Colour of cobalt chloride solution is [AFMC 1981]
  A)
  Pink done clear
  B)
  Black done clear
  C)
  Colourless done clear
  D)
  Green done clear
  View Solution play_arrow

• question_answer62)
  Sodium carbonate cannot be used in place of ammonium carbonate for the precipitation of the fifth group radicals because [AIIMS 1980]
  A)
  Sodium ions interfere with the detection of fifth group radicals done clear
  B)
  Concentration of carbonate ions is very low done clear
  C)
  Sodium will react with acidic radicals done clear
  D)
  Magnesium will be precipitated done clear
  View Solution play_arrow

• question_answer63)
  Nessler's reagent is used to detect [CPMT 1989; AIIMS 1997; MP PET 1999]
  A)
  \[CrO_{4}^{2-}\] done clear
  B)
  \[PO_{4}^{3-}\] done clear
  C)
  \[MnO_{4}^{-}\] done clear
  D)
  \[NH_{4}^{+}\] done clear
  View Solution play_arrow

• question_answer64)
  A light greenish coloured salt was soluble in water. On passing \[{{H}_{2}}S\] into the solution a black precipitate was obtained which dissolve readily in \[HCl\]. The metal ion present is [BHU 1981]
  A)
  \[C{{o}^{+2}}\] done clear
  B)
  \[F{{e}^{2+}}\] done clear
  C)
  \[N{{i}^{+2}}\] done clear
  D)
  \[M{{n}^{+2}}\] done clear
  View Solution play_arrow

• question_answer65)
  Yellow ammonium sulphide solution is a suitable reagent for the separation of [BHU 1987]
  A)
  \[HgS\] and \[PbS\] done clear
  B)
  \[PbS\] and \[B{{i}_{2}}{{S}_{3}}\] done clear
  C)
  \[B{{i}_{2}}{{S}_{3}}\] and \[CuS\] done clear
  D)
  \[CdS\] and \[A{{s}_{2}}{{S}_{3}}\] done clear
  View Solution play_arrow

• question_answer66)
  \[Fe{{\left( OH \right)}_{3}}\] can be separated from \[Al{{\left( OH \right)}_{3}}\] by addition of [BHU 1981]
  A)
  Dil. \[HCl\] done clear
  B)
  \[NaCl\] solution done clear
  C)
  \[NaOH\] solution done clear
  D)
  \[N{{H}_{4}}Cl\] and \[N{{H}_{4}}OH\] done clear
  View Solution play_arrow

• question_answer67)
  The reagents \[N{{H}_{4}}Cl\] and aqueous \[N{{H}_{3}}\] will precipitate [IIT 1991]
  A)
  \[C{{a}^{2+}}\] done clear
  B)
  \[A{{l}^{+3}}\] done clear
  C)
  \[M{{g}^{2+}}\] done clear
  D)
  \[Z{{n}^{2+}}\] done clear
  View Solution play_arrow

• question_answer68)
  The aqueous solutions of the following salts will be coloured in the case of [IIT 1990]
  A)
  \[Zn{{(N{{O}_{3}})}_{2}}\] done clear
  B)
  \[LiN{{O}_{3}}\] done clear
  C)
  \[CrC{{l}_{3}}\] done clear
  D)
  Potash alum done clear
  View Solution play_arrow

• question_answer69)
  A mixture containing \[C{{d}^{2+}}\] and \[HCl\left( 6N \right)\] can be separated for identification by [MP PMT 1994]
  A)
  Passing \[H{{g}_{2}}C{{l}_{2}}\] in acid medium done clear
  B)
  Passing \[PbC{{l}_{2}}\] in alkaline medium done clear
  C)
  Passing \[PbC{{l}_{2}}\] in neutral medium done clear
  D)
  Passing \[HgC{{l}_{2}}\] in dry mixture done clear
  View Solution play_arrow

• question_answer70)
  Addition of \[SnC{{l}_{2}}\] to \[HgC{{l}_{2}}\] gives ppt [BVP 2003]
  A)
  White turning to red done clear
  B)
  White turning to gray done clear
  C)
  Black turning to white done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer71)
  When dilute aqueous solution of\[AgN{{O}_{3}}\](excess) is added to KI solution, positively charged sol. Particles of AgI are formed due to adsorption of ion [BHU 2003]
  A)
  \[NO_{3}^{-}\] done clear
  B)
  \[O_{2}^{\ -}\] done clear
  C)
  \[A{{g}^{+}}\] done clear
  D)
  \[{{K}^{+}}\] done clear
  View Solution play_arrow

• question_answer72)
  Heamoglobin is a complex of [CPMT 2003]
  A)
  \[F{{e}^{3+}}\] done clear
  B)
  \[F{{e}^{2+}}\]\[\] done clear
  C)
  \[F{{e}^{4+}}\] done clear
  D)
  \[C{{u}^{2+}}\] done clear
  View Solution play_arrow

• question_answer73)
  A colourless crystalline salt ?X? is soluble in dilute HCI. On adding NaOH solution, it gives a white precipitate which is insoluble in excess of NaOH. ?X? is [KCET 2003]
  A)
  \[A{{l}_{2}}{{\left( S{{O}_{4}} \right)}_{3}}\] done clear
  B)
  \[ZnS{{O}_{4}}\] done clear
  C)
  \[MgS{{O}_{4}}\] done clear
  D)
  \[SnC{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer74)
  Precipitate of group IV cations takes place when \[{{H}_{2}}S\]is [RPET 2003]
  A)
  Highly ionised done clear
  B)
  Less ionised done clear
  C)
  Not ionised done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer75)
  In Nessler's reagent for the detection of ammonia the active species is [Kerala (Med.) 2003]
  A)
  \[H{{g}_{2}}C{{l}_{2}}\] done clear
  B)
  \[H{{g}^{2+}}\] done clear
  C)
  \[H{{g}_{2}}{{I}_{2}}\] done clear
  D)
  \[HgI_{4}^{2-}\] done clear
  View Solution play_arrow

• question_answer76)
  On addition of aqueous \[NaOH\] to a salt solution, a white gelatinous precipitate is formed, which dissolves in excess alkali. The salt solution contains [MP PMT 1994]
  A)
  Chromium ions done clear
  B)
  Aluminium ions done clear
  C)
  Barium ions done clear
  D)
  Iron ions done clear
  View Solution play_arrow

• question_answer77)
  A solution prepared in conc. \[HCl\] sometimes gives white turbidity even in the absence of 1st group, when water is added to it. It is due to the presence of
  A)
  \[H{{g}^{2+}}\] done clear
  B)
  \[S{{b}^{3+}}\] done clear
  C)
  \[A{{g}^{3+}}\] done clear
  D)
  \[S{{b}^{3+}}\] or \[B{{i}^{3+}}\] or both done clear
  View Solution play_arrow

• question_answer78)
  Which of the following pairs of ions when mixed in dilute solutions may give precipitate [CPMT 1976; NCERT 1987; Kurukshetra CEE 1998]
  A)
  \[N{{a}^{+}},SO_{4}^{2-}\] done clear
  B)
  \[NH_{4}^{+},CO_{3}^{2-}\] done clear
  C)
  \[N{{a}^{+}},{{S}^{2-}}\] done clear
  D)
  \[F{{e}^{3+}},PO_{4}^{3-}\] done clear
  View Solution play_arrow

• question_answer79)
  Which one of the following sulphides is only completely precipitated when the acidic solution is made dilute [MP PET 2000]
  A)
  \[HgS\] done clear
  B)
  \[PbS\] done clear
  C)
  \[CdS\] done clear
  D)
  \[CuS\] done clear
  View Solution play_arrow

• question_answer80)
  A reagent used to test the presence of \[F{{e}^{2+}}\] ion is [KCET 1998]
  A)
  \[{{H}_{2}}S\] done clear
  B)
  \[N{{H}_{4}}CNS\] done clear
  C)
  \[{{K}_{4}}Fe{{(CN)}_{6}}\] done clear
  D)
  \[{{K}_{3}}Fe{{\left( CN \right)}_{6}}\] done clear
  View Solution play_arrow

• question_answer81)
  Identify the statement which is not correct regarding copper sulphate [UPSEAT 2001]
  A)
  It reacts with KI to give iodine done clear
  B)
  It reacts with KCl to give \[C{{u}_{2}}C{{l}_{2}}\] done clear
  C)
  It reacts with\[NaOH\]and glucose to give\[C{{u}_{2}}O\] done clear
  D)
  It gives\[CuO\]on strong heating in air done clear
  View Solution play_arrow

• question_answer82)
  Mark the correct statement [MP PMT 2002]
  A)
  I group basic radicals precipitate as chlorides done clear
  B)
  IV group basic radicals precipitate as sulphides done clear
  C)
  V group basic radicals precipitate as carbonates done clear
  D)
  All of these statement are correct done clear
  View Solution play_arrow

• question_answer83)
  The following four solutions are kept in separate beakers and copper metal is put in each of them. Which solution will become blue after some time [MP PMT 2003]
  A)
  \[AgN{{O}_{3}}\]solution done clear
  B)
  \[Zn{{\left( N{{O}_{3}} \right)}_{2}}\]solution done clear
  C)
  \[Ba{{\left( N{{O}_{3}} \right)}_{2}}\]solution done clear
  D)
  \[NaN{{O}_{3}}\] solution done clear
  View Solution play_arrow

• question_answer84)
  \[C{{u}^{2+}}\] ions will be reduced to \[C{{u}^{+}}\] ions by the addition of an aqueous solution of [AIIMS 1992]
  A)
  \[KF\] done clear
  B)
  \[KCl\] done clear
  C)
  \[KI\] done clear
  D)
  \[KOH\] done clear
  View Solution play_arrow

• question_answer85)
  Which radicals are precipitated in (NH4)2CO3 in presence of alkali [Pb. PMT 2001]
  A)
  Ca, Ba, Sr done clear
  B)
  Mg done clear
  C)
  Both done clear
  D)
  None done clear
  View Solution play_arrow

• question_answer86)
  Which of the following is soluble in yellow ammonium sulphide [MP PET 1994, 97]
  A)
  \[CuS\] done clear
  B)
  \[CdS\] done clear
  C)
  \[SnS\] done clear
  D)
  \[PbS\] done clear
  View Solution play_arrow

• question_answer87)
  Which mixture is separated by conc. aqueous solution of sodium hydroxide [UPSEAT 1999]
  A)
  \[A{{l}^{3+}}\]and\[S{{n}^{2+}}\] done clear
  B)
  \[A{{l}^{3+}}\]and \[F{{e}^{3+}}\] done clear
  C)
  \[A{{l}^{3+}}\]and \[Z{{n}^{2+}}\] done clear
  D)
  \[Z{{n}^{2+}}\]and \[P{{b}^{2+}}\] done clear
  View Solution play_arrow

• question_answer88)
  \[{{H}_{2}}S\] is passed through an acidified solution of \[Ag,\] \[Cu\] and \[Zn\]. Which forms precipitate [BHU 1998]
  A)
  \[Ag\] done clear
  B)
  \[Zn\] done clear
  C)
  \[Cu\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer89)
  The presence of \[N{{H}_{4}}Cl\] in the test solution while precipitating group III-A hydroxides (in qualitative inorganic analysis) helps in
  A)
  Lowering \[\left[ O{{H}^{-}} \right]\] done clear
  B)
  Lowering \[\left[ N{{H}_{4}}OH \right]\] done clear
  C)
  Increasing \[\left[ O{{H}^{-}} \right]\] done clear
  D)
  Increasing \[\left[ N{{H}_{4}}OH \right]\] done clear
  View Solution play_arrow

• question_answer90)
  On saturating aqueous solution of Cu (II), Pb (II) and Zn (II) ions with \[{{H}_{2}}S\] will precipitate
  A)
  Only \[CuS\] done clear
  B)
  Only \[PbS\] done clear
  C)
  Both \[CuS\] and \[PbS\] done clear
  D)
  \[CuS,\] \[PbS\] and \[ZnS\] done clear
  View Solution play_arrow

• question_answer91)
  A chloride dissolves appreciably in cold water when placed on a platinum wire in Bunsen flame, no distinctive colour is noted, which cation could be present [Pb. PMT 1998]
  A)
  \[M{{g}^{2+}}\] done clear
  B)
  \[B{{a}^{2+}}\] done clear
  C)
  \[P{{b}^{2+}}\] done clear
  D)
  \[C{{a}^{2+}}\] done clear
  View Solution play_arrow

• question_answer92)
  A solid A which has photographic effect reacts with the solution of a sodium salt B to give a pale yellow ppt. C. Sodium salt on heating gives brown vapour. Identify A, B and C. [Orissa JEE 2004]
  A)
  \[AgN{{O}_{3}},NaBr,AgBr\] done clear
  B)
  \[AgN{{O}_{3}},NaCl,AgC{{l}_{2}}\] done clear
  C)
  \[AgN{{O}_{3}},NaBr,AgC{{l}_{2}}\] done clear
  D)
  \[AgCl,NaBr,AgB{{r}_{2}}\] done clear
  View Solution play_arrow

• question_answer93)
  In qualitative analysis, in order to detect second group basic radical, \[{{H}_{2}}S\] gas is passed in the presence of dilute HCl to [KCET 2004]
  A)
  Increase in dissociation of \[{{H}_{2}}S\] done clear
  B)
  Decrease the dissociation of salt solution done clear
  C)
  Decrease the dissociation of \[{{H}_{2}}S\] done clear
  D)
  Increase the dissociation of salt solution done clear
  View Solution play_arrow

• question_answer94)
  \[{{H}_{2}}S\] gas when passed through a solution of a contains HCl precipitate the cations of group of qualitative analysis but not those belonging to the fourth group. It is because [CBSE PMT 2005]
  A)
  Presence of HCl decreases the sulphide ion concentration done clear
  B)
  Presence of HCl increases the sulphide ion concentration done clear
  C)
  Solubility product of group II sulphides is more than that of group IV sulphides done clear
  D)
  Sulphides of group IV Cations are in \[HCl\] done clear
  View Solution play_arrow

• question_answer95)
  A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI convert into orange colour solution. The cation of the metal nitrate is [IIT-JEE (Screening) 2005]
  A)
  \[H{{g}^{2+}}\] done clear
  B)
  \[B{{i}^{3+}}\] done clear
  C)
  \[P{{b}^{2+}}\] done clear
  D)
  \[C{{u}^{+}}\] done clear
  View Solution play_arrow

• question_answer96)
  Which of the following basic radicals will not be precipated by \[{{H}_{2}}S\] gas in the presence of \[N{{H}_{3}}\] [Pb. CET 2003]
  A)
  \[M{{n}^{2+}}\] done clear
  B)
  \[N{{i}^{2+}}\] done clear
  C)
  \[C{{d}^{2+}}\] done clear
  D)
  \[C{{a}^{2+}}\] done clear
  View Solution play_arrow

• question_answer97)
  On passing \[{{H}_{2}}S\] black ppt. of II group is obtained. The mixture may not contain [CPMT 1989]
  A)
  \[P{{b}^{++}}\] done clear
  B)
  \[C{{d}^{++}}\] done clear
  C)
  \[H{{g}^{++}}\] done clear
  D)
  \[C{{u}^{++}}\] done clear
  View Solution play_arrow

• question_answer98)
  Ferrous and ferric ions in solution may be distinguished by using
  A)
  Silver nitrate solution done clear
  B)
  Lead acetate solution done clear
  C)
  Acidified solution of potassium permanganate done clear
  D)
  Sodium chloride solution done clear
  View Solution play_arrow

• question_answer99)
  Solution of II A group precipitate in dil. \[HN{{O}_{3}}\] when treated with \[N{{H}_{4}}OH\] becomes blue because of the presence of
  A)
  \[Mg\] done clear
  B)
  \[Cd\] done clear
  C)
  \[Bi\] done clear
  D)
  \[Cu\] done clear
  View Solution play_arrow

• question_answer100)
  When calomel react with \[N{{H}_{4}}OH\] solution the compound formed is [BCECE 2005]
  A)
  \[N{{H}_{2}}-Hg-Cl\] done clear
  B)
  \[H{{g}_{2}}C{{l}_{2}}N{{H}_{3}}\] done clear
  C)
  \[Hg{{(N{{H}_{3}})}_{2}}C{{l}_{2}}\] done clear
  D)
  \[HgC{{l}_{2}}N{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer101)
  Copper sulphate solution react with KCN [BCECE 2005]
  A)
  \[{{K}_{3}}[Cu{{(CN)}_{4}}]\] done clear
  B)
  \[CuCN\] done clear
  C)
  \[Cu{{(CN)}_{2}}\] done clear
  D)
  \[{{K}_{2}}[Cu{{(CN)}_{4}}]\] done clear
  View Solution play_arrow

• question_answer102)
  A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI convert into orange colour solution. The cation of the metal nitrate is [IIT 2005]
  A)
  \[H{{g}^{2+}}\] done clear
  B)
  \[B{{i}^{3+}}\] done clear
  C)
  \[P{{b}^{2+}}\] done clear
  D)
  \[C{{u}^{+}}\] done clear
  View Solution play_arrow

• question_answer103)
  \[{{H}_{2}}S\] Gas when passed through a solution of a contains \[HCl\] precipitates the cations of group of qualitative analysis but not those belonging to the fourth group. It is because [CBSE PMT 2005]
  A)
  Presence of \[HCl\] decreases the sulphides ion concentration done clear
  B)
  Presence of HCl increases the sulophide ion concentration done clear
  C)
  Solubility product of group II sulphides is more than that of group IV sulphides done clear
  D)
  Sulphides of group IV cations are in HCl. done clear
  View Solution play_arrow

• question_answer104)
  Sodium nitroprusside when added to an alkaline solution of sulphide ions produce a [AFMC 2005]
  A)
  Red colouration done clear
  B)
  Blue colouration done clear
  C)
  Purple colouration done clear
  D)
  Brown colouration done clear
  View Solution play_arrow