Chemistry MCQs with answers Page - 40

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. Which of the following is a monoatomic gas?

  • (A) Oxygen
  • (B) Neon
  • (C) Nitrogen
  • (D) Fluorine

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Q. The purest form of water in nature is

  • (A) Rain water
  • (B) Lake water
  • (C) River water
  • (D) Sea water

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Q. In drinking water supply, which of the following treatments is not involved

  • (A) Coagulation
  • (B) Sedimentation
  • (C) Softening
  • (D) Disinfection

A

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Q. The two metal ions that cause hardness to water are:

  • (A) Calcium, Magnesium
  • (B) Sodium, Calcium
  • (C) Sodium, Potassium
  • (D) Sodium, Magnesium

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Q. Saturated hydrocarbons have

  • (A) Triple bonds
  • (B) Single bonds
  • (C) Two double bonds
  • (D) Double bonds

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Q. Consider the following statements:
1.Sugar chars on heating.
2.On heating, sugar loses water.
3.Sugar is a carbohydrate.
4.Table sugar is made up of glucose and fructose.
The correct statement(s) is/are

  • (A) 1 only
  • (B) 2 and 3 only
  • (C) 1, 2, 3 and 4
  • (D) 1 and 3 only

A

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Q. Consider the following statements:
1.Catalysts are not consumed during chemical reactions.
2.Catalysts alter the course of the reactions.
3.Catalysts are required in stoichiometric amounts.
The correct statement(s) is/are:

  • (A) 1 and 3 only
  • (B) 2 and 3 only
  • (C) 1, 2 and 3
  • (D) 1 and 2 only

A

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Q. Bleaching powder is used in drinking water as a/an

  • (A) Disinfectant
  • (B) Antibiotic
  • (C) Antiseptic
  • (D) Coagulant

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