Organic Chemistry (702)

50 Mcqs Questions for Preparation of Online Exam.

              👇

1...Novolac, the linear polymer used in paints is

👉copolymer of buta 1, 3-diene and styrene

👉copolymer of melamine and HCHO

👉condensation polymer of phenol and HCHO ☑️

👉polymer of methyl methacrylate

2...Which one of the following statement is false ?

👉Artificial silk is derived from cellulose

👉Both starch and cellulose are polymer of glucose.

👉The repeated unit in natural rubber is isoprene

👉Nylon-6,6 is an example of elastomer ☑️

3...Match the polymers given in Column I with the preferred mode of polymerisation followed by their monomers______

👉(a) iii (b) ii (c) i

👉(a) iv (b) i (c) ii ☑️

👉(a) iii (b) i (c) ii

👉(a) iv (b) ii (c) i

4...Which polymer occur naturally ?

👉Protein and PVC

👉Starch and nylon

👉Protein and nylon

👉Starch and cellulose ☑️

5...Example of Animal Fiber is___

👉Linen

👉cotton

👉silk ☑️

👉Jute

6...Isoprene is used in the manufacture of __________

👉None of these

👉Plasticizers

👉Explosives

👉Synthetic rubber products ☑️

7...Polypropylene is a competitor of ________

👉Both A and B ☑️

👉Polyethylene

👉Styrene resins

8...Ethylene glycol is not obtained by ________

👉Acetylene-hydrochloric acid reaction ☑️

👉Chlorohydrination of ethylene

👉None of these

👉Direct oxidation of ethylene

9...The polymers in which monomers alternate in a regular manner as in the polymers formed between styrene and butadiene are termed ___________

👉Cross-linked polymers

👉Random co-polymers ☑️

👉None of these

👉Alternating co-polymers

10...Which of the following is not prepared from acetylene?

👉Perchloro ethylene

👉Acrylonitrile

👉Ammonium nitrate

👉Styrene

11...Nylon threads are made of______

👉Polyethylene polymer

👉Polyester polymer

👉Polyvinyl chloride

👉Polyamide polymer ☑️

12...Which one is not correct method for Petroleum distillation ______

👉Vacuum distillation

👉Multiple distillation

👉Fractional distillation

👉Steam distillation ☑️

13...Vinyl chloride is produced directly from ________

👉Acrylonitrile

👉Ethylene dichloride ☑️

👉Polyethylene

👉None of above

14...Bakelite is obtained from phenol by reacting with

👉CH₃CHO

👉HCHO ☑️

👉(CH₂OH)₂

👉CH₃COCH₃

15...Cyclohexane is predominantly formed from petroleum by __________

👉Direct fractionation of reforming stock ☑️

👉Both A and B

👉Catalytic hydrogenation of benzene

16...Nylon is not a

👉Condensation polymer

👉Polyamide

👉Homopolymer ☑️

👉Copolymer

17...Which of the polymers are used as fibre ?

👉Polytetra fluoroethane

👉Buna-S

👉Nylon ☑️

👉Poly chloroprene

18...Which of the following are addition polymers ?

👉Nylon

👉Polystyrene ☑️

👉Melamine formaldehyde resin

👉Dacron

19...Which of the following is not used as a source of carbon black?

👉Petroleum distillate

👉All of these

👉Residual oil

👉LPG ☑️

20...Acrolein is prepared by________

👉Direct oxidation of ethylene

👉Alkyl alcohol oxidation

👉Direct oxidation of propylene ☑️

👉Both 1 and 2

21...The polymer containing strong intermolecular H-bonding and crystalline nature is

👉Teflon

👉Polystyrene

👉Nylon 6, 6 ☑️

👉Natural rubber

22...Carbon black is prepared by _________

👉Controlled combustion of methane ☑️

👉all of above

👉Dehydrogenation of natural gas

👉Oxidation of methane

23...Which of the following polymer need atleast one diene monomer for their preparation ?

👉Novolac

👉Nylon 6,6

👉Dacron

👉Buna – S ☑️

24...[HN(CH₂)₆NHCO(CH₂)₄CO]n is a

👉Homopolymer

👉Thermosetting polymer

👉Addition polymer

👉Copolymer ☑️

25...Which of the following is not a part of the process of manufacturing glycerine from propylene?

👉Via aryl benzene sulphonate ☑️

👉Via acrolein

👉Via allyl chloride

👉None of these

26...Which of the following has ester linkages?

👉PVC

👉Terylene ☑️

👉Bakelite

👉Nylon

27...Which one of the following statement is not true ?

👉In vulcanization, the formation of sulphar bridge between different chain male rubber harder and stronger

👉Buna-S is a copolymer of butadiene

👉Natural rubber has the trans-configuration at every double bond ☑️

👉Natural rubber is a 1,4-polymer of isoprene

28...The monomer of Buna- S rubber are______

👉Isoprene and butadiene

👉Styrene and butadiene ☑️

👉Vinyl chloride and styrene

👉Butadiene

29...Which of the following is thermosetting polymer

👉Nylon-6,6

👉Bakelite ☑️

👉PVC

👉Neoprene

30...To produce 6,6-nylon fibre, adipic acid is condensed with _________

👉Aniline

👉Hexamethylenediamine ☑️

👉Caprolactum

👉Maleic anhydride

31...Propylene tetramer is produced directly from ________

👉Both B and C

👉Propylene☑️

👉Butylene

👉Ethylene

32...Which of the following is a chain growth polymer ?

👉Protein

👉Polystyrene☑️

👉Nucleic acid

👉Starch

33...Gasoline is produced directly from ___

👉Ethanol

👉Both A and B

👉Neither A nor B

👉Ethylene oxide

34...Which of the following monomers gives the polymer neoprene on polymerization ?

👉CH₂=CCl – CH=CH₂☑️

👉CH₂=CHCl

👉CCl₂=CCl₂

👉F₂C=CF₂

35...Which of the following is not a condensation polymer ?

👉Dacron

👉Neoprene ☑️

👉Gyptal

👉Melamine

36...Which one of the following polymer is prepared by condensation polymerization ?

👉Rubber

👉Nylon-6,6☑️

👉Styrene

👉Teflon

37...Which of the following is initiator in free radical polymerisation?

👉Benzoyl peroxide☑️

👉HNO₃

👉AlCl₃

👉Bu-Li

38...Cumene is produced by the alkylation of propylene with__________-

👉Benzene☑️

👉Para-xylene

👉ortho-xylene

👉Toluene

39...Which of the following is not correct regarding terylene?

👉also called dacron

👉Synthetic fibre

👉Thermosetting plastic☑️

👉Step growth polymer

40...Cumene is produced by __________

👉Both A and B

👉Propylene alkylation of benzene ☑️

👉Catalytic dehydrogenation of isopropanol

👉Thermal cracking of benzene

41...Which of the following is a fully fluorinated polymer ?

👉Neoprene 

👉PVC

👉Teflon ☑️

👉Thikol

42...Isophthalic acid is made from ____________

👉o-Xylene

👉m-Xylene☑️

👉All of these

👉p-Xylene

43...Which of the following is polyamide ?

👉Bakelite

👉Teflon

👉Terylene

👉Nylon-6,6☑️

44...Ethylene di-amine is produced by heating ethylene dichloride with ______

👉Ethylene dibromide

👉Carbon black

👉None of above

👉Ammonia☑️

45...Butane is blended with gasoline to _________

👉Both B and C

👉Increase volatility

👉Increase octane number in gasoline

👉Decrease engine corrosion

46...The petrochemical that is not an intermediate for the manufacture of synthetic glycerine is__________

👉Epichlorohydrin

👉None of the above

👉Allyl alcohol

👉Acrylonitrile☑️

47...Phthalic anhydride is prepared from ___________

👉m-Xylene

👉p-Xylene

👉Toluene

👉o-Xylene ☑️

48...Match the polymers given in Column I with their chemical names given in Column II.

👉(a) iii (b) i (c) ii (d) v (e) iv☑️

👉(a) ii (b) iv (c) v (d) i (e) iii

👉(a) iii (b) i (c) iv (d) v (e) ii

49...Which of the following is not made from ethylene?

👉None of these

👉Acetaldehyde

👉Polystyrene

👉Ethylene diamine

50...The impact strength is measured as 

________

👉Elasticity

👉Strength

👉Toughness ☑️

👉Permeability