Chemistry MCQ Questions with answers

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 or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

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Yogesh • 7.43K Points
Tutor III Chemistry

Q) Which of the following phenomenon is considered responsible for Global Warming?

  • (A) Greenhouse effect
  • (B) Fire in coal mines
  • (C) Dry farming
  • (D) Monsoon
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Correct Answer - Option (A)

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Yogesh • 7.43K Points
Tutor III Chemistry

Q) The nucleus of an atom consists of

  • (A) electrons and neutrons
  • (B) electrons and protons
  • (C) protons and neutrons
  • (D) All of the above
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Correct Answer - Option (C)

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Yogesh • 7.43K Points
Tutor III Chemistry

Q) The number of moles of solute present in 1 kg of a solvent is called its

  • (A) molality
  • (B) molarity
  • (C) normality
  • (D) formality
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Correct Answer - Option (A)

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Yogesh • 7.43K Points
Tutor III Chemistry

Q) The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

  • (A) p-electrons in Ne(Z = 10)
  • (B) s-electrons in Mg(Z = 12)
  • (C) d-electrons in Fe(Z = 26)
  • (D) p-electrons in CI(Z = 17)
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Correct Answer - Option (D)

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Yogesh • 7.43K Points
Tutor III Chemistry

Q) The metallurgical process in which a metal is obtained in a fused state is called

  • (A) smelting
  • (B) roasting
  • (C) calcinations
  • (D) froth floatation
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Correct Answer - Option (A)

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Yogesh • 7.43K Points
Tutor III Chemistry

Q) The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth's early life and solidified into hard rock's called

  • (A) granite
  • (B) basalt
  • (C) igneous rocks
  • (D) sedimentary rocks
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Correct Answer - Option (C)

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Yogesh • 7.43K Points
Tutor III Chemistry

Q) The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is

  • (A) Dalton's law
  • (B) Gay Lussac's law
  • (C) Henry's law
  • (D) Raoult's law
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Correct Answer - Option (C)

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