Chemistry MCQs with answers Page - 145

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which of the following is used to neutralize acid spills?

  • (A) Vinegar
  • (B) Sodium hydroxide
  • (C) Baking soda
  • (D) Ammonium chloride

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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which gas is produced during respiration?

  • (A) Oxygen
  • (B) Carbon dioxide
  • (C) Hydrogen
  • (D) Nitrogen

S

Shyam Dubey • 3.70K Points
Extraordinary

Q. Which element is known as the ‘King of Chemicals’?

  • (A) Sulphuric acid
  • (B) Nitric acid
  • (C) Hydrochloric acid
  • (D) Phosphoric acid

S

Shyam Dubey • 3.70K Points
Extraordinary

Q. What is the main constituent of LPG?

  • (A) Methane
  • (B) Propane and Butane
  • (C) Ethane and Methane
  • (D) Hydrogen and Oxygen

S

Shyam Dubey • 3.70K Points
Extraordinary

Q. Which metal is extracted from bauxite ore?

  • (A) Iron
  • (B) Copper
  • (C) Aluminium
  • (D) Zinc

S

Shyam Dubey • 3.70K Points
Extraordinary

Q. Which gas is used for artificial ripening of fruits?

  • (A) Ethylene
  • (B) Methane
  • (C) Carbon dioxide
  • (D) Oxygen

S

Shyam Dubey • 3.70K Points
Extraordinary

Q. What is the main component of paper?

  • (A) Cellulose
  • (B) Starch
  • (C) Protein
  • (D) Lignin

S

Shyam Dubey • 3.70K Points
Extraordinary

Q. Which acid is used in soft drinks?

  • (A) Nitric acid
  • (B) Phosphoric acid
  • (C) Sulphuric acid
  • (D) Acetic acid

S

Shyam Dubey • 3.70K Points
Extraordinary

Q. Which of the following is the hardest natural substance?

  • (A) Gold
  • (B) Diamond
  • (C) Iron
  • (D) Quartz

S

Shyam Dubey • 3.70K Points
Extraordinary

Q. Which gas is used for the preparation of soda water?

  • (A) Oxygen
  • (B) Carbon dioxide
  • (C) Hydrogen
  • (D) Nitrogen

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