JEE Main & Advanced Chemistry Analytical Chemistry Question Bank

done Preliminary Test Total Questions - 23

• question_answer1)
   In borax bead test, which of the following compound is formed [CBSE PMT 2002]
  A)
  Meta borate done clear
  B)
  Tetra borate done clear
  C)
  Double oxide done clear
  D)
  Ortho borate done clear
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• question_answer2)
  The metal that does not give the borax-bead test is [MP PMT 1999]
  A)
  Chromium done clear
  B)
  Nickel done clear
  C)
  Lead done clear
  D)
  Manganese done clear
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• question_answer3)
  Which of the following is colored compound? [BCECE 2005]
  A)
  \[Cu{{F}_{2}}\] done clear
  B)
  \[Cul\] done clear
  C)
  \[NaCl\] done clear
  D)
  \[MgC{{l}_{2}}\] done clear
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• question_answer4)
  The composition of 'Golden spangles' is [CBSE PMT 1990]
  A)
  \[PbCr{{O}_{4}}\] done clear
  B)
  \[Pb{{I}_{2}}\] done clear
  C)
  \[A{{s}_{2}}{{S}_{3}}\] done clear
  D)
  \[BaCr{{O}_{4}}\] done clear
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• question_answer5)
  The alkaline earth metal that imparts apple green colour to the bunsen flame when introduced in it in the form of its chloride is [EAMCET 1979]
  A)
  Barium done clear
  B)
  Strontium done clear
  C)
  Calcium done clear
  D)
  Magnesium done clear
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• question_answer6)
  Which gives violet coloured bead in borax bead test [BHU 1988; MP PET 1997]
  A)
  \[F{{e}^{2+}}\] done clear
  B)
  \[N{{i}^{2+}}\] done clear
  C)
  \[C{{o}^{2+}}\] done clear
  D)
  \[M{{n}^{2+}}\] done clear
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• question_answer7)
  Sodium borate on reaction with \[{{H}_{2}}S{{O}_{4}}\] (conc.) and \[{{C}_{2}}{{H}_{5}}OH\] gives a compound ?A? which burns with green flame. The compound ?A? is [MP PET 1994]
  A)
  \[{{H}_{2}}{{B}_{4}}{{O}_{7}}\] done clear
  B)
  \[{{\left( {{C}_{2}}{{H}_{5}} \right)}_{2}}{{B}_{4}}{{O}_{7}}\] done clear
  C)
  \[{{H}_{3}}B{{O}_{3}}\] done clear
  D)
  \[{{\left( {{C}_{2}}{{H}_{5}} \right)}_{3}}B{{O}_{3}}\] done clear
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• question_answer8)
  On mixing two colourless gases, a deep brown colour is observed. The gases are [CPMT 1977]
  A)
  \[{{N}_{2}}O\] and \[{{O}_{2}}\] done clear
  B)
  \[NO\] and \[{{O}_{2}}\] done clear
  C)
  \[{{N}_{2}}{{O}_{3}}\] and \[{{O}_{2}}\] done clear
  D)
  None of these done clear
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• question_answer9)
  Which one of the following metals will give blue ash when its salt is heated with \[N{{a}_{2}}C{{O}_{3}}\] solid and \[Co{{\left( N{{O}_{3}} \right)}_{2}}\] on a charcoal piece [MNR 1987]
  A)
  \[Cu\] done clear
  B)
  \[Mg\] done clear
  C)
  \[Al\] done clear
  D)
  \[Zn\] done clear
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• question_answer10)
  The metal that does not give the borax bead test is [BHU 1987; AFMC 1995; MHCET 2003]
  A)
  Cr done clear
  B)
  \[Ni\] done clear
  C)
  \[Na\] done clear
  D)
  \[Mn\] done clear
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• question_answer11)
  When concentrated \[{{H}_{2}}S{{O}_{4}}\] is added to dry \[KN{{O}_{3}}\], brown fumes evolve. These fumes are [CPMT 1988; IIT 1987]
  A)
  \[S{{O}_{2}}\] done clear
  B)
  \[S{{O}_{3}}\] done clear
  C)
  \[NO\] done clear
  D)
  \[N{{O}_{2}}\] done clear
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• question_answer12)
  Which one of the following salt give green coloured flame when the salt is tested by Pt wire
  A)
  Barium salt done clear
  B)
  Calcium salt done clear
  C)
  Borate done clear
  D)
  Lead salt done clear
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• question_answer13)
  A precipitate of calcium oxalate will not dissolve in [CPMT 1971]
  A)
  \[HCl\] done clear
  B)
  \[HN{{O}_{3}}\] done clear
  C)
  Aqua-regia done clear
  D)
  Acetic acid done clear
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• question_answer14)
  Sodium sulphite on heating with dilute \[HCl\] liberates a gas which [NCERT 1972]
  A)
  Turns lead acetate paper black done clear
  B)
  Turns acidified potassium dichromate paper green done clear
  C)
  Burns with a blue flame done clear
  D)
  Smells like vinegar done clear
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• question_answer15)
  Starch-iodide paper is used for the test of
  A)
  Iodine done clear
  B)
  Iodide ion done clear
  C)
  Oxidising agent done clear
  D)
  Reducing agent done clear
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• question_answer16)
  Which of the following salt gives white precipitate with \[AgN{{O}_{3}}\]  solution and dil. \[{{H}_{2}}S{{O}_{4}}\] solution and gives green flame test
  A)
  \[CuC{{l}_{2}}\] done clear
  B)
  \[BaC{{l}_{2}}\] done clear
  C)
  \[PbC{{l}_{2}}\] done clear
  D)
  \[Cu{{(N{{O}_{3}})}_{2}}\] done clear
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• question_answer17)
  Two gases when mixed give white dense fumes, the gases are
  A)
  \[N{{H}_{3}}\] and \[S{{O}_{2}}\] done clear
  B)
  \[S{{O}_{2}}\] and steam done clear
  C)
  \[N{{H}_{3}}\] and \[HCl\] done clear
  D)
  \[N{{H}_{3}}\] and \[{{N}_{2}}O\] done clear
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• question_answer18)
  Blue borax bead is obtained with [MADT Bihar 1982; MP PET 1995]
  A)
  \[Zn\] done clear
  B)
  Cobalt done clear
  C)
  Chromium done clear
  D)
  \[Fe\] done clear
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• question_answer19)
  Which of the following imparts green colour to the burner flame [DCE 2004]
  A)
  \[B{{(OMe)}_{3}}\] done clear
  B)
  \[Na(OMe)\] done clear
  C)
  \[Al{{(O\Pr )}_{3}}\] done clear
  D)
  \[Sn{{(OH)}_{2}}\] done clear
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• question_answer20)
  In laboratory burners, we use [DCE 2004]
  A)
  Producer gas done clear
  B)
  Oil gas done clear
  C)
  Gobar gas done clear
  D)
  Coal gas done clear
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• question_answer21)
  A colourless gas with the smell of rotten fish is [AFMC 2005]
  A)
  \[{{H}_{2}}S\] done clear
  B)
  \[P{{H}_{3}}\] done clear
  C)
  \[S{{O}_{2}}\] done clear
  D)
  None of these done clear
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• question_answer22)
  Which BLUE LIQUID is obtained on reacting equimolar amounts of two gases at\[-30{}^\circ C\]? [IIT 2005]
  A)
  \[{{N}_{2}}O\] done clear
  B)
  \[{{N}_{2}}{{O}_{3}}\] done clear
  C)
  \[{{N}_{2}}{{O}_{4}}\] done clear
  D)
  \[{{N}_{2}}{{O}_{5}}\] done clear
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• question_answer23)
  \[Mn{{O}_{2}}\] and \[{{H}_{2}}S{{O}_{4}}\] added to \[NaCl\], the greenish yellow gas liberated is  [Orissa JEE 2005]
  A)
  \[C{{l}_{2}}\] done clear
  B)
  \[N{{H}_{3}}\] done clear
  C)
  \[{{N}_{2}}\] done clear
  D)
  \[{{H}_{2}}\] done clear
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