Chemistry MCQs with answers Page - 21

Here, you will find a collection of MCQ questions on Chemistry. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Alcoholic fermentation is brought about the action of

  • (A) yeast
  • (B) CO2
  • (C) O2
  • (D) CO

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Q. Smoke is a colloidal dispersion of a

  • (A) Solid in a gas
  • (B) Liquid in a gas
  • (C) Gas in a solid
  • (D) Gas in a gas

A

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Q. Which one of the following contains cobalt?

  • (A) Chlorophyll
  • (B) Haemoglobin
  • (C) Vitamin C
  • (D) Vitamin B12

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Q. Which of the following gases is used in cigarette lighters?

  • (A) Butane
  • (B) Methane
  • (C) Propane
  • (D) Radon

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Q. Heavy water is used as a coolant in nuclear reactors Heavy water is

  • (A) Water rich in minerals
  • (B) Ozonized water
  • (C) Water containing minerals of heavy metal
  • (D) Water containg heavy isotope of hydrogen

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Q. The metal that is used as a catalyst in the hydrogenation of oils is

  • (A) Pb
  • (B) Cu
  • (C) Pt
  • (D) Ni

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Q. The substance that is least prone to catch and spread fire is

  • (A) polyester
  • (B) nylon
  • (C) cotton
  • (D) terycot

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