JEE Main & Advanced Chemistry Metallurgy / धातुकर्म Question Bank

done Occurrence Total Questions - 72

• question_answer1)
  The most abundant element on earth crust is  [MP PMT 1972, 80, 84; DPMT 1986]
  A)
  Hydrogen done clear
  B)
  Oxygen done clear
  C)
  Silicon done clear
  D)
  Carbon done clear
  View Solution play_arrow

• question_answer2)
  Naturally occurring substances from which a metal can be profitably (or economically) extracted are called [CPMT 1982; MP PET 1996]
  A)
  Minerals done clear
  B)
  Ores done clear
  C)
  Gangue done clear
  D)
  Salts done clear
  View Solution play_arrow

• question_answer3)
  Titanium containing mineral found in our country is [NCERT 1984; RPET 1999]
  A)
  Bauxite done clear
  B)
  Dolomite done clear
  C)
  Chalcopyrites done clear
  D)
  Elmanite done clear
  View Solution play_arrow

• question_answer4)
  Silicon is main constituent of [DPMT 1985]
  A)
  Alloys done clear
  B)
  Rocks done clear
  C)
  Animals done clear
  D)
  Vegetables done clear
  View Solution play_arrow

• question_answer5)
  Ore pitch blende is main source of [DPMT 1985; RPET 1999]
  A)
  \[Ra\] done clear
  B)
  \[Ce\] done clear
  C)
  \[Th\] done clear
  D)
  \[Mg\] done clear
  View Solution play_arrow

• question_answer6)
  Which of ore is metalloid [MP PMT 1987]
  A)
  \[As\] done clear
  B)
  \[Na\] done clear
  C)
  \[Au\] done clear
  D)
  \[Fe\] done clear
  View Solution play_arrow

• question_answer7)
  A mineral is called an ore if [MP PMT 1990]
  A)
  Metal present in mineral is precious done clear
  B)
  Metal can be extracted from it done clear
  C)
  Metal can be extracted profitably from it done clear
  D)
  Metal cannot be extracted from it done clear
  View Solution play_arrow

• question_answer8)
  The highest quantity present in the atmosphere is of [NCERT 1971, 79; CPMT 1972]
  A)
  Oxygen done clear
  B)
  Hydrogen done clear
  C)
  Nitrogen done clear
  D)
  Ozone done clear
  View Solution play_arrow

• question_answer9)
  Which of the following statement is correct
  A)
  Bauxite is an ore of aluminium done clear
  B)
  Magnetite is an ore of manganese done clear
  C)
  Haematite is  an ore of mercury done clear
  D)
  Pyrites is an ore of phosphorus done clear
  View Solution play_arrow

• question_answer10)
  Carnellite is a mineral of [CBSE PMT 1988; DPMT 1983; AMU 1999]
  A)
  \[Ca\] done clear
  B)
  \[Na\] done clear
  C)
  \[Mg\] done clear
  D)
  \[Zn\] done clear
  View Solution play_arrow

• question_answer11)
  The salt  which is least likely to be found in minerals is [DPMT 1984]
  A)
  Chloride done clear
  B)
  Sulphate done clear
  C)
  Sulphide done clear
  D)
  Nitrate done clear
  View Solution play_arrow

• question_answer12)
  Metal which can be extracted from all the three dolomite, magnesite and carnallite is [MP PET 1985]
  A)
  \[Na\] done clear
  B)
  \[K\] done clear
  C)
  \[Mg\] done clear
  D)
  \[Ca\] done clear
  View Solution play_arrow

• question_answer13)
  Cinnabar is an ore of [DPMT 1982, 84; CBSE PMT 1991; MNR 1986; CPMT 1973, 76, 78, 79, 86, 89, 94; UPSEAT 1999]
  A)
  \[Hg\] done clear
  B)
  \[Cu\] done clear
  C)
  \[Pb\] done clear
  D)
  \[Zn\] done clear
  View Solution play_arrow

• question_answer14)
  Metallurgy is the process of [MP PET 2001]
  A)
  Concentrating the ore done clear
  B)
  Roasting the ore done clear
  C)
  Extracting the metal from the ore done clear
  D)
  Adding carbon to the ore in blast furnace done clear
  View Solution play_arrow

• question_answer15)
  What is believed to be the second most common element in the universe [MP PET 2000]
  A)
  Helium done clear
  B)
  Hydrogen done clear
  C)
  Nitrogen done clear
  D)
   Silicon done clear
  View Solution play_arrow

• question_answer16)
  Which of the following substances consists of only one element [MP PET 1999, 2000]
  A)
  Marble done clear
  B)
  Sand done clear
  C)
  Diamond done clear
  D)
  Glass done clear
  View Solution play_arrow

• question_answer17)
  Which of the following minerals is not an ore of aluminum
  A)
  Bauxite done clear
  B)
  Gypsum done clear
  C)
  Cryolite done clear
  D)
  Corundum done clear
  View Solution play_arrow

• question_answer18)
  An example of halide ore is [MP PMT 1993]
  A)
  Galena done clear
  B)
  Bauxite done clear
  C)
  Cinnabar done clear
  D)
  Cryolite done clear
  View Solution play_arrow

• question_answer19)
  Which of the following is not an ore [IIT 1982]
  A)
  Bauxite done clear
  B)
  Malachite done clear
  C)
  Zinc blende done clear
  D)
  Pig iron done clear
  View Solution play_arrow

• question_answer20)
  ?Chile saltpetre? is an ore of [CPMT 1982]
  A)
  Iodine done clear
  B)
  Sodium done clear
  C)
  Bromine done clear
  D)
  Magnesium done clear
  View Solution play_arrow

• question_answer21)
  Which of the following metal is not found in free state
  A)
  \[Na\] done clear
  B)
  \[Au\] done clear
  C)
  \[Ag\] done clear
  D)
  \[Pb\] done clear
  View Solution play_arrow

• question_answer22)
  Which of the following ore is used for industrial extraction of aluminium in India [MP PET 1989]
  A)
  Corundum done clear
  B)
  Keolin done clear
  C)
  Cryolite done clear
  D)
  Bauxite done clear
  View Solution play_arrow

• question_answer23)
  Bauxite is an oxide ore of [BHU 1979; AFMC 1980; Kurukshetra CEE 1998; RPET 1999; CPMT 1976, 2001, 02]
  A)
  Barium done clear
  B)
  Boron done clear
  C)
  Bismuth done clear
  D)
  Aluminium done clear
  View Solution play_arrow

• question_answer24)
  Cryolite is [AMU 1983]
  A)
  Magnesium silicate done clear
  B)
  Sodium borofluoride done clear
  C)
  Sodium aluminium fluoride done clear
  D)
  Magnesium silicate done clear
  View Solution play_arrow

• question_answer25)
  Composition of bauxite is
  A)
  \[A{{l}_{2}}{{O}_{3}}\] done clear
  B)
  \[A{{l}_{2}}{{O}_{3}}.\,{{H}_{2}}O\] done clear
  C)
  \[A{{l}_{2}}{{O}_{3}}.\,2{{H}_{2}}O\] done clear
  D)
  \[A{{l}_{2}}{{O}_{3}}.\,3{{H}_{2}}O\] done clear
  View Solution play_arrow

• question_answer26)
  Main ore of aluminium is [CPMT 1989, 91, 2001; RPMT 1997; RPET 1999] [CPMT 2002, MP PMT 1999]
  A)
  Bauxite done clear
  B)
  Corundum done clear
  C)
  Cryolite done clear
  D)
  Magnetite done clear
  View Solution play_arrow

• question_answer27)
  Corundum is [CPMT 1975, 76; DPMT 1983]
  A)
  \[Sr{{O}_{2}}\] done clear
  B)
  \[A{{l}_{2}}{{O}_{3}}\] done clear
  C)
  \[CaC{{l}_{2}}\] done clear
  D)
  \[C{{u}_{2}}C{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer28)
  Which is not a mineral of aluminium [BHU 1974, 79; MNR 1984; DPMT 2002]
  A)
  Anhydrite done clear
  B)
  Bauxite done clear
  C)
  Corundum done clear
  D)
  Diaspore done clear
  View Solution play_arrow

• question_answer29)
  Which of the following mineral does not contain \[Al\] [IIT (Screening) 1992]
  A)
  Cryolite done clear
  B)
  Mica done clear
  C)
  Feldspar done clear
  D)
  Fluorspar done clear
  View Solution play_arrow

• question_answer30)
  An important oxide ore of iron is [MP PET/PMT 1998; MP PET 1990; MP PMT 1994, 96]
  A)
  Haematite done clear
  B)
  Siderite done clear
  C)
  Pyrites done clear
  D)
  Malachite done clear
  View Solution play_arrow

• question_answer31)
  Which ore is used for the manufacture of iron [CPMT 1973, 79; RPET 2000]
  A)
  Cryolite done clear
  B)
  Bauxite done clear
  C)
  Haematite done clear
  D)
  Chalcopyrites done clear
  View Solution play_arrow

• question_answer32)
  Formula of magnetite is [CPMT 1991]
  A)
  \[F{{e}_{2}}{{O}_{3}}\] done clear
  B)
  \[Fe{{S}_{2}}\] done clear
  C)
  \[FeC{{O}_{3}}\] done clear
  D)
  \[F{{e}_{3}}{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer33)
  Which of the following is ferrous alloy [DPMT 1982, 84; CPMT 1989]
  A)
  Invar done clear
  B)
  Solder done clear
  C)
  Magnalium done clear
  D)
  Type metal done clear
  View Solution play_arrow

• question_answer34)
  Which of the following ores does not represent the ore of iron [CPMT 1989; AIIMS 2002]
  A)
  Haematite done clear
  B)
  Magnetite done clear
  C)
  Cassiterite done clear
  D)
  Limonite done clear
  View Solution play_arrow

• question_answer35)
  The formula of haematite is [MNR 1994]
  A)
  \[F{{e}_{3}}{{O}_{4}}\] done clear
  B)
  \[F{{e}_{2}}{{O}_{3}}\] done clear
  C)
  \[FeC{{O}_{3}}\] done clear
  D)
  \[Fe{{S}_{2}}\] done clear
  View Solution play_arrow

• question_answer36)
  Which metal is not silvery white
  A)
  \[Ni\] done clear
  B)
  \[Cu\] done clear
  C)
  \[Na\] done clear
  D)
  \[Sn\] done clear
  View Solution play_arrow

• question_answer37)
  Azurite is an ore of
  A)
  \[Ag\] done clear
  B)
  \[Cu\] done clear
  C)
  \[Pt\] done clear
  D)
  \[Au\] done clear
  View Solution play_arrow

• question_answer38)
  Copper can be extracted from [NCERT 1973; IIT 1978; J & K 2005]
  A)
  Kupfernickel done clear
  B)
  Dolomite done clear
  C)
  Galena done clear
  D)
  Malachite done clear
  View Solution play_arrow

• question_answer39)
  Which of the following ore is called malachite [CPMT 1989, 93]
  A)
  \[C{{u}_{2}}S\] done clear
  B)
  \[CuC{{O}_{3}}.Cu{{(OH)}_{2}}\] done clear
  C)
  \[C{{u}_{2}}O\] done clear
  D)
  \[CuC{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer40)
  Argentite is a mineral of [CPMT 1978; MP PMT/PET 1988]
  A)
  Copper done clear
  B)
  Silver done clear
  C)
  Platinum done clear
  D)
  Gold done clear
  View Solution play_arrow

• question_answer41)
  Which one of the following is an ore of silver [CPMT 1983; MP PET 1989; CBSE PMT 1993]
  A)
  Argentite done clear
  B)
  Stibnite done clear
  C)
  Haematite done clear
  D)
  Bauxite done clear
  View Solution play_arrow

• question_answer42)
  Calamine is [BHU 1980, 85; CPMT 1990; MNR 1995; UPSEAT 1999]
  A)
  \[ZnS{{O}_{4}}\] done clear
  B)
  \[ZnO\] done clear
  C)
  \[Zn{{(N{{O}_{3}})}_{2}}\] done clear
  D)
  \[ZnC{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer43)
  Important ore of zinc is [CPMT 1973, 78, 80]
  A)
  Calamine done clear
  B)
  Cryolite done clear
  C)
  Gibsite done clear
  D)
  Malachite done clear
  View Solution play_arrow

• question_answer44)
  Which of the following statement is incorrect [CPMT 1985]
  A)
  Silver glance mainly contains silver sulphide done clear
  B)
  Gold is found in native state done clear
  C)
  Zinc blende mainly contain zinc chloride done clear
  D)
  Copper pyrites also contain \[F{{e}_{2}}{{S}_{3}}\] done clear
  View Solution play_arrow

• question_answer45)
  Commercially important ore of lead from which it is extracted is [DPMT 1982, 96; MP PMT 2000]
  A)
  Siderite done clear
  B)
  Haematite done clear
  C)
  Galena done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer46)
  Which of the following is not an ore of lead [MP PMT 1993]
  A)
  Galena done clear
  B)
  Anglesite done clear
  C)
  Calamine done clear
  D)
  Cerrusite done clear
  View Solution play_arrow

• question_answer47)
  Galena is
  A)
  \[PbO\] done clear
  B)
  \[PbC{{O}_{3}}\] done clear
  C)
  \[PbS\] done clear
  D)
  \[PbC{{l}_{2}}\] done clear
  View Solution play_arrow

• question_answer48)
  An example of an oxide ore is [MP PET 1996]
  A)
  Bauxite done clear
  B)
  Malachite done clear
  C)
  Zinc blende done clear
  D)
  Felspar done clear
  View Solution play_arrow

• question_answer49)
  Cryolite is an ore of [MP PMT 1996; BHU 2002; DPMT 1996]
  A)
  Iron done clear
  B)
  Silver done clear
  C)
  Zinc done clear
  D)
  Aluminium done clear
  View Solution play_arrow

• question_answer50)
  Cassiterite is an ore of [CBSE PMT 1999; DPMT 1996]
  A)
  \[Mn\] done clear
  B)
  \[Ni\] done clear
  C)
  \[Sb\] done clear
  D)
  \[Sn\] done clear
  View Solution play_arrow

• question_answer51)
  Which one of the following is the most abundant element in the universe [NDA 1999]
  A)
  Nitrogen done clear
  B)
  Hydrogen done clear
  C)
  Oxygen done clear
  D)
  Silicon done clear
  View Solution play_arrow

• question_answer52)
  Among the following statements, the incorrect one is [IIT 1997]
  A)
  Calamine and siderite are carbonates done clear
  B)
  Argentite and cuprite are oxides done clear
  C)
  Zinc blende and pyrites are sulphides done clear
  D)
  Malachite and azurite are ores of copper done clear
  View Solution play_arrow

• question_answer53)
  Which one of the following ores is a chloride [EAMCET 1997; CPMT 2001]
  A)
  Horn silver done clear
  B)
  Zincite done clear
  C)
  Bauxite done clear
  D)
  Felspar done clear
  View Solution play_arrow

• question_answer54)
  Aluminium is most abundant in earth crust yet it is obtained from bauxite because [CPMT 1997]
  A)
  Bauxite is available in larger quantity done clear
  B)
  Of easy extraction of aluminium from it done clear
  C)
  Bauxite contains maximum aluminium done clear
  D)
  Bauxite is less impure done clear
  View Solution play_arrow

• question_answer55)
  An ore of potassium is [JIPMER 2001]
  A)
  Bauxite done clear
  B)
  Solomite done clear
  C)
  Carnallite done clear
  D)
  Cryolite done clear
  View Solution play_arrow

• question_answer56)
  The molecular formula of cryolite is [AFMC 1999; MP PET 2002]
  A)
  \[F{{e}_{3}}{{O}_{4}}\] done clear
  B)
  \[N{{a}_{3}}Al{{F}_{6}}\] done clear
  C)
  \[N{{a}_{2}}A{{l}_{2}}{{O}_{3}}\] done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer57)
  All ores are minerals, while all minerals are not ores because [Orissa JEE 2002]
  A)
  The metal can?t be extracted economically from all the minerals done clear
  B)
  Minerals are complex compounds done clear
  C)
  The minerals are obtained from mines done clear
  D)
  All of these are correct done clear
  View Solution play_arrow

• question_answer58)
  Corundum is an ore of [Kerala (Med.) 2002]
  A)
  Copper done clear
  B)
  Boron done clear
  C)
  Aluminium done clear
  D)
  Sodium done clear
  View Solution play_arrow

• question_answer59)
  Which one of the following is correct [MP PET/PMT 2002]
  A)
  A mineral cannot be an ore done clear
  B)
  An ore cannot be a mineral done clear
  C)
  All minerals are ores done clear
  D)
  All ores are minerals done clear
  View Solution play_arrow

• question_answer60)
  Which ore contains both iron and copper? [IIT-JEE (Screening) 2005]
  A)
  Cuprite done clear
  B)
  Chalcocite done clear
  C)
  Chalcopyrite done clear
  D)
  Malachite done clear
  View Solution play_arrow

• question_answer61)
  Formula of Felspar is [MHCET 2004]
  A)
  \[{{K}_{2}}O.A{{l}_{2}}{{O}_{3}}.6Si{{O}_{2}}\] done clear
  B)
  \[{{K}_{2}}{{O}_{3}}.A{{l}_{2}}{{O}_{3}}.6S{{i}_{2}}.{{O}_{2}}.2{{H}_{2}}O\] done clear
  C)
  \[A{{l}_{2}}{{O}_{3}}.2Si{{O}_{2}}.2{{H}_{2}}O\] done clear
  D)
  \[3MgO.4Si{{O}_{2}}.{{H}_{2}}O\] done clear
  View Solution play_arrow

• question_answer62)
  Chile saltpetre is [MP PET 2004]
  A)
  \[NaN{{O}_{3}}\] done clear
  B)
  \[KN{{O}_{3}}\] done clear
  C)
  \[N{{a}_{2}}S{{O}_{4}}\] done clear
  D)
  \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer63)
  Which of the following is not an ore of magnesium [CPMT 2004; DCE 2004]
  A)
  Magnesite done clear
  B)
  Dolomite done clear
  C)
  Gypsum done clear
  D)
  Carnalite done clear
  View Solution play_arrow

• question_answer64)
  Which of the following is not a mineral of iron? [Kerala PMT 2004]
  A)
  Magnetite done clear
  B)
  Siderite done clear
  C)
  Smithsonite done clear
  D)
  Limonite done clear
  E)
  Haematite done clear
  View Solution play_arrow

• question_answer65)
  The ore carnalite is represented by structure: [EAMCET 1987; MP PET 1986, 04; AFMC 2000 Pb. PMT 2004]
  A)
  \[N{{a}_{2}}A{{l}_{2}}{{O}_{3}}\] done clear
  B)
  \[N{{a}_{3}}Al{{F}_{6}}\] done clear
  C)
  \[KCl.MgC{{l}_{2}}6{{H}_{2}}O\] done clear
  D)
  \[F{{e}_{3}}{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer66)
  Which of the following metal is sometimes found native in nature [CPMT 1973, 75; MP PET 1999]
  A)
  \[Al\] done clear
  B)
  \[Cu\] done clear
  C)
  \[Fe\] done clear
  D)
  \[Mg\] done clear
  View Solution play_arrow

• question_answer67)
  The most abundant metal in the earth crust is [BHU 1979, 81; MP PMT 1997; CPMT 1988, 2001; CBSE PMT 2000]
  A)
  \[Na\] done clear
  B)
  \[Mg\] done clear
  C)
  \[Al\] done clear
  D)
  \[Fe\] done clear
  View Solution play_arrow

• question_answer68)
  Indicate the mineral from which copper is manufactured [NCERT 1973]
  A)
  Galena done clear
  B)
  Cuprite done clear
  C)
  Sphalerite done clear
  D)
  Chalcopyrite done clear
  View Solution play_arrow

• question_answer69)
  The principal ores of silver are argentite, horn silver and pyrargyrite. Their formula respectively are
  A)
  \[A{{g}_{2}}S,\,AgCl\] and \[AgSb{{S}_{2}}\] done clear
  B)
  \[AgCl,\,AgSb{{S}_{2}}\] and \[A{{g}_{2}}S\] done clear
  C)
  \[AgSb{{S}_{2}},\,A{{g}_{2}}S\] and \[AgCl\] done clear
  D)
  \[AgCl,\,A{{g}_{2}}S\] and \[AgSb{{S}_{2}}\] done clear
  View Solution play_arrow

• question_answer70)
  The most important ore of tin is [AFMC 2005]
  A)
  Cassiterite done clear
  B)
  Cryolite done clear
  C)
  Cerussite done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer71)
  Important ore of Mg is [BCECE 2005]
  A)
  Gypsum done clear
  B)
  Carnalite done clear
  C)
  Magnatide done clear
  D)
  Carnolite done clear
  View Solution play_arrow

• question_answer72)
  Which of the following is a carbonate ore [AIIMS 2005]
  A)
  Pyrolusite done clear
  B)
  Malachite done clear
  C)
  Diaspore done clear
  D)
  Cassiterite done clear
  View Solution play_arrow