Chemistry MCQs with answers Page - 44

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. The element common to all acids is

  • (A) Sulphur
  • (B) Oxygen
  • (C) Carbon
  • (D) Hydrogen

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Q. Chocolates can be bad for health because of high content of

  • (A) Nickel
  • (B) Cobalt
  • (C) Zinc
  • (D) Lead

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Q. Chlorophyll is a naturally occurring chelate compound in which central metal is

  • (A) Calcium
  • (B) Magnesium
  • (C) Copper
  • (D) Iron

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Q. The mineral containing both magnesium and calcium is

  • (A) Dolomite
  • (B) Calcite
  • (C) Carnallite
  • (D) Magnesite

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Q. Besides hydrogen, which of the following elements is common in organic compounds?

  • (A) Carbon
  • (B) Nitrogen
  • (C) Sulphur
  • (D) Phosphorus

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Q. The first metal used by man was

  • (A) Copper
  • (B) Gold
  • (C) Iron
  • (D) Bronze

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Q. The gas used for artificial ripening of green fruit is

  • (A) Carbon dioxide
  • (B) Ethane
  • (C) Ethylene
  • (D) Acetylene

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Q. The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of

  • (A) An addition reaction
  • (B) An elimination reaction
  • (C) An oxidation reaction
  • (D) A condensation reaction

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Q. Washing soda is the common name for

  • (A) Sodium carbonate
  • (B) Calcium carbonate
  • (C) Sodium bicarbonate
  • (D) Calcium bicarbonate

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Q. Insulin controls the metabolism of

  • (A) Fats
  • (B) Proteins
  • (C) Salts
  • (D) Sugars

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