Chemistry MCQ Questions with answers

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Here Important Chemistry MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping Share button.

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Q. The ore which is found in abundance in India is

  • (A) monazite
  • (B) fluorspar
  • (C) bauxite
  • (D) magnetite
📝 Notes
✅ Correct Answer: (A) monazite

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:39 pm in Chemistry

Q. The inherited traits of an organism are controlled by

  • (A) RNA molecules
  • (B) nucleotides
  • (C) DNA molecules
  • (D) enzymes
📝 Notes
✅ Correct Answer: (C) DNA molecules

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:39 pm in Chemistry

Q. The heat energy produced when the human body metabolises 1 gram of fat is

  • (A) 30 KJ
  • (B) 1 KJ
  • (C) 39 KJ
  • (D) 29 KJ
📝 Notes
✅ Correct Answer: (C) 39 KJ

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:40 pm in Chemistry

Q. What are the number of moles of CO2 which contains 16 g of oxygen?

  • (A) 0.5 mole
  • (B) 0.2 mole
  • (C) 0.4 mole
  • (D) 0.25 mole
📝 Notes
✅ Correct Answer: (A) 0.5 mole

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:40 pm in Chemistry

Q. The main use of salt in the diet is to

  • (A) make the taste of food better
  • (B) produce in small amounts the hydrochloric acid required for the digestion of food
  • (C) ease the process of cooking
  • (D) increase the solubility of food particles in water
📝 Notes
✅ Correct Answer: (B) produce in small amounts the hydrochloric acid required for the digestion of food

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:41 pm in Chemistry

Q. The monomer of polythene is

  • (A) vinyl chloride
  • (B) ethylene
  • (C) ethyl alcohol
  • (D) None of the above
📝 Notes
✅ Correct Answer: (B) ethylene

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:41 pm in Chemistry

Q. The luster of a metal is due to

  • (A) its high density
  • (B) its high polishing
  • (C) its chemical inertness
  • (D) presence of free electrons
📝 Notes
✅ Correct Answer: (D) presence of free electrons

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:42 pm in Chemistry

Q. The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

  • (A) 1.568 x 10^3
  • (B) 6.023 x 10^19
  • (C) 4.84 x 10^17
  • (D) 6.023 x 10^23
📝 Notes
✅ Correct Answer: (B) 6.023 x 10^19

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:43 pm in Chemistry

Q. The most malleable metal is

  • (A) platinum
  • (B) silver
  • (C) iron
  • (D) gold
📝 Notes
✅ Correct Answer: (D) gold

Published by Mr. Dubey ⭐ 111.54K Points at 15-Sep-2021 07:43 pm in Chemistry

Q. Which scientist discovered the radioactive element radium?

  • (A) Isaac Newton
  • (B) Albert Einstein
  • (C) Benjamin Franklin
  • (D) Marie Curie
📝 Notes
✅ Correct Answer: (D) Marie Curie

Published by Admin ⭐ 38.37K Points at 16-Sep-2021 07:10 am in Chemistry

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