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 types of glasses contains Cerium and other rare earths and has a high absorption of ultraviolet rays?
[A] Crookes Glass
[B] Pyrex Glass
[C] Flint Glass
[D] Crown Glass

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2. Which colour does cobalt oxide impart to glass?
[A] Brown
[B] Blue
[C] Red
[D] Yellow

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3. The Helium atoms that have lost two electrons are called ________?
[A] Alpha rays
[B] Beta rays
[C] Gamma rays
[D] None of the above

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4. 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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5. Which among the following is an ionic solid?
[A] Diamond
[B] Dry ice
[C] Table salt
[D] All are ionic solids

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6. What is the nature of an aqueous solution of Sodium Acetate?
[A] Acidic
[B] Basic
[C] Neutral
[D] Either acidic or basic, depending on the temperature of the solution

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7. Amalgam’ is a term used for an alloy of a metal with :
[A] Copper
[B] Mercury
[C] Lead
[D] Aluminium

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8. The largest component of Coal gas is__?
[A] Methane
[B] Hydrogen
[C] Carbon Dioxide
[D] Carbon Monoxide

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9. Which of the following radical is also known as the “atmospheric detergent” ?
[A] Chlorine radical
[B] Hydroxyl radical
[C] Methyl radical
[D] Ozone radical

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10. Which of the following occurs as dry deposits and is also known as Sajimati (efflorescent soil) in India?
[A] Sodium carbonate
[B] Potassium carbonate
[C] Calcium carbonate
[D] Magnesium carbonate

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