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

1. Which among the following is popularly called Hypo?

[A] Silver Bromide
[B] Silver nitrate
[C] Sodium thiosulphate
[D] Sodium phosphate

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2. Which among the following acids is abundant in Grapes, Bananas and Tamarind?

[A] Lactic Acid
[B] Oxalic Acid
[C] Salicylic Acid
[D] Tartaric Acid

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3. Potassium permanganate is used to purify water. Which among the following properties of Potassium permanganate helps in this work?

[A] sterilizing
[B] oxidizing
[C] reducing
[D] leaching

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4. Which of the following type of Coal, has maximum carbon content?

[A] Peat
[B] Lignite
[C] Antharacite
[D] Bituminious

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5. Which among the following minerals is also known as Horn Silver?

[A] Silver Iodide
[B] Silver Chroride
[C] Zinc Phosphate
[D] Silver Sulphide

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6.   Which of the following can be used as coolant in a nuclear reactor?

  1. Carbon dioxide
  2. Liquid sodium
  3. Helium (He) gas

 Select the correct option from codes given below:

[A] 1 & 2 Only
[B] 2 & 3 Only
[C] 1 & 3 Only
[D] 1, 2 & 3

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7.   Consider the following compounds:

  1. Sodium bicarbonate
  2. Ferro cyanide 
  3. Carbon tetrachloride

Which of the above is/are organic compound/compounds?

[A] 1 & 2 Only
[B] 3 Only
[C] 1, 2 & 3
[D] None

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8. What is the dimensional formula of Stress?

[A] M 1 L-2 T-2
[B] M 1 L-1 T-1
[C] M 1 L1 T-3
[D] M 1 L-1 T-2

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9. Which of the following statements represent Hooke’s law?

[A] Stress is directly proportional to strain
[B] Stress is inversely proportional to strain
[C] Stress is equal to strain
[D] None of the above

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10. Which of the following is responsible for the anomalous behaviour of lithium in the periodic table?

[A] exceptionally small size of its atom and ion
[B] high polarising power
[C] Both a and b
[D] None

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