General Science Chemistry MCQs

Chemistry Objective (Multiple Choice) General Knowledge Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examination

41. Which of the following alkene shows structural isomerism?

[A] Ethene
[B] Propene
[C] Butene
[D] All of the above

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42. Which of the following hydrocarbon is the source of Natural rubber?

[A] isoprene
[B] Benzene
[C] Butene
[D] Methanol

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43. What is the monomer unit of Teflon?

[A] Acetylene
[B] terafluoroethylene
[C] neoprene
[D] Propylene

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44. What do we call the polymer which is formed from more than one kind of monomer?

[A] Homopolymer
[B] Copolymer
[C] Megapolymer
[D] Heteropolymer

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45. Which of these is an example of a homopolymer?

[A] Polyethene
[B] Buna-S rubber
[C] Styrene
[D] All of the above

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46. Which of these is not a natural polymer?

[A] Starch
[B] cellulose
[C] Proteins
[D] Bakelite

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47. Which of these is not a Linear polymer?

[A] Starch
[B] Polyethelene
[C] Nylons
[D] Polyesters

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48. Which of these metals will not melt when kept in palm?

[A] Gallium
[B] Caesium
[C] Zirconium
[D] All of the above

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49. Which of the following metals is the major constituent of Pewter alloy?

[A] Tin
[B] Indium
[C] Titanium
[D] Lead

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50. Which is the most abundant metal in the Earth’s crust?

[A] Iron
[B] Aluminium
[C] Copper
[D] Silicon

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