Chemistry MCQs

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

1. Which among the following substances is most suitable for making Compact Discs?
[A] PVC
[B] Polyethylene
[C] Polyamides
[D] Polycarbonates

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2. Which among following is also known as white gold?
[A] Nickel

[B] Rhodium
[C] Platinum
[D] Palladium

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3. Which of the following type of Coal has maximum carbon content?
[A] Peat
[B] Lignite
[C] Antharacite
[D] Bituminious

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4. Which gas is produced when an alkali metal, like Lithium or Sodium, reacts with water?
[A] Oxygen
[B] Hydrogen
[C] Ozone
[D] Carbon Dioxide

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5. Which of the following is not a common use of Graphite?
[A] Manufacturing of electrodes
[B] As a lubricant
[C] Manufacturing of crucibles
[D] In glass cutting

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6. Consider the following:

  1. Cinnabar is also known as mercurblende
  2. The color of Cinnabar varies from dull grey to bright green
  3. Cinnabar is the most common source ore for refining elemental mercury
  4. Cinnabar is the historic source for the brilliant blue pigment termed azure

Which of the statements given above are correct?

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

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7. Which among the following is the most important characteristic of Noble metals?
[A] Luster
[B] Non reactive nature
[C] Preciousness
[D] Rare availability

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8. Which among the following is the main constituent of malleable metal alloy Pewter ?
[A] Copper
[B] Zinc
[C] Tin
[D] Bismuth

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9. Sodium bicarbonate decomposes above 70 °C, making it usable in bakery products. What end product of this thermal decomposition process contributes to its use in baking?
[A] Hydrogen
[B] Carbon Dioxide
[C] Water Vapor
[D] Sodium Carbonate

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10. Which of the following is not a mixture?
[A] Ocean water
[B] Table salt
[C] Air
[D] Soil

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