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. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

11. Which of the following hydrogen bond is formed in the case of o-nitrophenol?

[A] Intramolecular
[B] Intermolecular
[C] Both a and b
[D] None

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12. Which of these is a biodegradable polymer?

[D] All of the above

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13. Which of these polymers is formed by the polymerization of the dimer of lactic acid?

[D] None of the above

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14. Which of the following is not a property of Nylon-66?

[A] Nylon fibres have low tensile strength
[B] Nylon fibres are resistant to abrasion
[C] Nylon fibres are somewhat elastic in nature
[D] All of the above

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15. Which of the following carbon compound is used in the polymerisation process to produce polythene?

[A] Methane
[B] Ethene
[C] Ethyne
[D] Benzene

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16. Which of these non-metals are present in Gun powder?

[A] Sulphur
[B] Carbon
[C] Nitrogen
[D] All of the above

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17. What are the structures formed by the soap molecules, during cleansing, known as?

[A] Stereates
[B] Esters
[C] Micelles
[D] Tubes

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18. Which of the following metals is the first metal used by a man?

[A] Gold
[B] Copper
[C] Silver
[D] Iron

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19. Which gas is called the “firedamp” in coal mines?

[A] Hydrogen
[B] Carbon monoxide
[C] Air
[D] Methane

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20. Which of the following causes the rusting of iron?

  1. Oxidation
  2. Reduction
  3. Chemical reaction with oxygen
  4. Chemical reaction with CO2

Select the correct answer from the codes given below:

[A] Only 1 and 2
[B] Only 2 and 3
[C] Only 3 and 4
[D] Only 1 and 3

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