JEE Main & Advanced Chemistry Polymers / बहुलक Question Bank

done Mock Test - Polymers Total Questions - 25

• question_answer1)
  Buna-N synthetic rubber is a copolymer of
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
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• question_answer2)
  Among cellulose, poly (vinyl chloride), nylon and natural rubber, the polymer in which the intermolecular force of attraction is weakest is
  A)
  nylon    done clear
  B)
  poly (vinyl chloride) done clear
  C)
  cellulose done clear
  D)
  natural rubber. done clear
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• question_answer3)
  Which of the following is used in vulcanization of rubber?
  A)
  \[S{{F}_{6}}\]  done clear
  B)
  \[C{{F}_{4}}\] done clear
  C)
  \[C{{l}_{2}}{{F}_{2}}\]                       done clear
  D)
  \[{{C}_{2}}{{F}_{2}}\] done clear
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• question_answer4)
  Formation of polyethylene from calcium carbide takes place as follows: \[Ca{{C}_{2}}+2{{H}_{2}}O\to Ca{{(OH)}_{2}}+{{C}_{2}}{{H}_{2}}\]\[{{C}_{2}}{{H}_{2}}+{{H}_{2}}\to {{C}_{2}}{{H}_{2}}\] \[n{{C}_{2}}{{H}_{2}}\to {{(-C{{H}_{2}}-C{{H}_{2}}-)}_{n}}\] The amount of polyethylene obtained from 64.1 kg of\[Ca{{C}_{2}}\] is
  A)
  7 kg                  done clear
  B)
  4 kg done clear
  C)
  21 kg     done clear
  D)
  28 kg done clear
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• question_answer5)
  Which of the following is resistant to boiling aqua regia?
  A)
  Polythene          done clear
  B)
  Perspex done clear
  C)
  Teflon   done clear
  D)
  Bakelite done clear
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• question_answer6)
  In the process of forming 'mercerised cellulose' the swelling of cellulose is caused by
  A)
  Water    done clear
  B)
  \[N{{a}_{2}}C{{O}_{3}}\] done clear
  C)
  conc.\[NaOH\]    done clear
  D)
  cone. \[HCl\] done clear
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• question_answer7)
  Which of the following sets contains only thermoplastics?
  A)
  PVC, PMMA, polystyrene done clear
  B)
  Polythene, Bakelite, nylon-6 done clear
  C)
  Glyptal, Melmac, PAN done clear
  D)
  Polypropylene, urea-formaldehyde, Teflon done clear
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• question_answer8)
  Free radical polymerisation requires a free radical initiator. The most commonly used free radical initiator is
  A)
  done clear
  B)
  \[(C{{H}_{3}})C-O-O-C{{(C{{H}_{3}})}_{3}}\], tert-butyl peroxide done clear
  C)
  \[Ph-CO-O-O-COPh\], benzoyl peroxide done clear
  D)
  \[C{{H}_{2}}{{N}_{2}},\]diazomethane done clear
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• question_answer9)
  The polymerisation reaction shown below would produce
  A)
  PVC                  done clear
  B)
  neoprene done clear
  C)
  chloroprene        done clear
  D)
  Rubber done clear
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• question_answer10)
  Which pair of polymers have similar properties?
  A)
  Nylon, PVC       done clear
  B)
  PCTFE done clear
  C)
  PAN, PTFE        done clear
  D)
  Bakelite alkyl resin done clear
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• question_answer11)
  Which of the following monomers can undergo radical, cationic as well as anionic polymerisation with equal ease?
  A)
  done clear
  B)
  \[C{{H}_{2}}=CH-CH\] done clear
  C)
  \[{{C}_{6}}{{H}_{5}}-CH=C{{H}_{2}}\] done clear
  D)
  \[C{{H}_{2}}=C{{H}_{2}}\] done clear
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• question_answer12)
  What is not true regarding free radical polymerisation of propene?
  A)
  Without proper control, atactic polypropylene is produced done clear
  B)
  During polymerization, a secondary free radical is produced in every step done clear
  C)
  Use of Ziegler-Natta catalyst results in isotactic polypropylene done clear
  D)
  During polymerization, a linear, unbranched, crystalline polymer is usually obtained done clear
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• question_answer13)
  Gutta-percha is
  A)
  trans-polyisoprene done clear
  B)
  non-elastic and softens to a plastic ?like material on heating done clear
  C)
  used in underwater cables and golf balls done clear
  D)
  All of the above done clear
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• question_answer14)
  The number average molecular mass and mass average molecular mass of a polymer are respectively 30,000 and 40,000. The polydispersity index of the polymer is
  A)
  <1                    done clear
  B)
  >1 done clear
  C)
  1          done clear
  D)
  0 done clear
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• question_answer15)
  Nylon-6, 10 is prepared by the condensation polymerisation of
  A)
  adipic acid and hexamethylenediamine done clear
  B)
  sebacic acid and hexamethylene-diamine done clear
  C)
  sebacic acid and hexamethylene-amine done clear
  D)
  none of the above done clear
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• question_answer16)
  Isotactic polypropylene polymer is one in which
  A)
  the methyl groups present alternate regularly from one side to the other done clear
  B)
  all methyl groups are on one side of the extended chain. It is a highly crystalline, has high melting point and forms strong fibres done clear
  C)
  the methyl groups are distributed at random. It is a soft, elastic and rubbery material done clear
  D)
  None of the above done clear
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• question_answer17)
  Match the following

  (i)	Biodegradable polymer	(p)	3-Hydroxybutanoic acid
  (ii)	Bakelite	(q)	phenol
  (iii)	Neoprene	(r)	2-chlorobuta-1, 3-diene
  (iv)	Glyptal	(s)	phthalic acid

  A)
  i\[\to \]p; ii\[\to \]q; iii\[\to \]r; iv\[\to \]s done clear
  B)
  i\[\to \]q; ii\[\to \]p; iii\[\to \]r; iv\[\to \]s done clear
  C)
  i\[\to \]p; ii\[\to \]q; iii\[\to \]s; iv\[\to \]r done clear
  D)
  i\[\to \]s; ii\[\to \]r; iii\[\to \]p; iv\[\to \]q done clear
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• question_answer18)

  Arrange the following monomers in order of decreasing ability to undergo cationic polymerisation.

  (I) \[C{{H}_{2}}=CH-{{C}_{6}}{{H}_{4}}(N{{O}_{2}})\]

  (II) \[C{{H}_{2}}=CH-{{C}_{6}}{{H}_{4}}(C{{H}_{3}})\]

  (III) \[C{{H}_{2}}=CH-{{C}_{6}}{{H}_{4}}(OC{{H}_{3}})\]

   
  A)
  I > II > III done clear
  B)
  II > I > III done clear
  C)
  III > II > I         done clear
  D)
  I > III > II done clear
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• question_answer19)
  The compound required for the formation of a thermosetting polymer with methanal is
  A)
  benzene done clear
  B)
  phenyl amine done clear
  C)
  benzaldehyde done clear
  D)
  phenol done clear
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• question_answer20)
  Which of the following is a biodegradable polymer?
  A)
  Cellulose            done clear
  B)
  Polythene done clear
  C)
  Polyvinyl chloride done clear
  D)
  Nylon-6 done clear
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• question_answer21)

  How many of the following is a condensation polymer?

  Polystyrene,

  Neoprene,

  PAN,

  Poly (ethyleneterephthalate)

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• question_answer22)
  An acidic resin can be made by the polymerization of 4-vinylpyridine initiated by AIBN and heat followed by treatment of the polymer with bromoacetate. How many (C = C) bonds are in conjugation with each other in 4-vinylpyridine?
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• question_answer23)
  How many of the following are condensation copolymers? Nylon-6, Nylon-66, Dacron, Glyptal, buna-S, ABS, neoprene, PHBV, perlo U
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• question_answer24)
  In the formation of how many of the following there is no loss of small molecules? Orion, PTFE, neoprene, Bakelite, buna-S, Melmac, vinyon, ABS, SAN.
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• question_answer25)
  PDI for natural polymers is generally close to.........
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