Chemistry MCQs with answers Page - 51

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 among the given is inright?

  • (A) Silver: Ag
  • (B) Potassium: Ka
  • (C) Sodium: Na
  • (D) Mercury: Hg

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Q. Aquaregia is a mixture of the following in the ratio 1: 3 by volume

  • (A) conc. HCl & conc. HNO3
  • (B) conc. HNO3 & conc. H2 SO4
  • (C) conc. HNO3 & conc. HCl
  • (D) dil. HCl & dil. HNO3

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Q. The most abundant element is

  • (A) Nitrogen
  • (B) Calcium
  • (C) Oxygen
  • (D) Silicon

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Q. Cement is usually a mixture of:

  • (A) Calcium aluminate & calcium ferrate
  • (B) Lime stone & silicon dioxide
  • (C) Calcium silicate & calcium ferrate
  • (D) Calcium silicate & calcium aluminate

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Q. Diamond is the form of carbon that is

  • (A) Crystalline
  • (B) Alkaline
  • (C) Amorphous
  • (D) Chemical

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Q. Inert gases are

  • (A) Chemically very active
  • (B) Not stable
  • (C) Chemically unreactive
  • (D) Miscible with water

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Q. In upper layer of atmosphere ozone is formed by

  • (A) the action of ultraviolet rays on oxygen
  • (B) the combination of oxygen molecules
  • (C) subjecting oxygen to high pressure
  • (D) the action of nitrogen on oxygen in atmosphere

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Q. In an oxygen molecule, two atoms are united by

  • (A) three bonds
  • (B) one bond
  • (C) four bonds
  • (D) two bonds

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Q. Aluminium surface are often anodised. This means the deposition of a layer of

  • (A) Zinc oxide
  • (B) Chromium oxide
  • (C) Nickel oxide
  • (D) Aluminium oxide

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Q. Wax used for making candle is chemically a mixture of

  • (A) aromatic hydrocarbons
  • (B) aliphatic hydrocarbons
  • (C) cyclic hydrocarbons
  • (D) aliphatic & aromatic hydrocarbons

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