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

11. Which among the following substances is most suitable for making Compact Discs?

[A] PVC
[B] Polyethylene
[C] Polyamides
[D] Polycarbonates

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12. Which among the following is known as Quick Lime?

[A] CaO
[B] CaCO2
[C] Ca(OH)2
[D] CaCl2

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13. Which among the following is major component of Gobar Gas?

[A] Butane
[B] Ethane
[C] Propane
[D] Metahne

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14. Who among the following scientists had discovered Radium?

[A] Marie Sklodowska-Curie and Pierre Curie
[B] André-Louis Debierne
[C] Kasimir Fajans
[D] Oswald Helmuth Göhring

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15. Charles Goodyear is known for which of the following ?

[A] Experiments on Rubber Plants
[B] Vulcanization of Rubber
[C] Invention of Radial Tyres
[D] Invention of Artificial Rubber

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16. The colors in the fine cut diamond are because of which among the following?

[A] Variance in transparency of diamond
[B] Variance in index of refraction
[C] Presence of Impurities
[D] Existence of definite planer layers

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17. Which of the following is incorrect about the Inter atomic and Intermolecular Forces?

[A] Both the forces are electrical in origin
[B] Both the forces are active over short distances
[C] General shape of force-distance graph is similar for both the forces
[D] None of the above

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18. Which of the following states of matter has the weakest Intermolecular forces?

[A] Solids
[B] Liquids
[C] Gases
[D] It is same in solids, liquids and gases

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19. What is the ratio of change in configuration to the original configuration called as?

[A] Strain
[B] Stress
[C] Elasticity
[D] Rebound

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20. Which of the following is the unit of Strain?

[A] Newton
[B] Kg
[C] Watt
[D] None of the above

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