SarkariPYQ

SSC Selection Post 2022 PYQ — Question 32

SSC Selection Post - Matriculation Level 2022 - 7 Feb 2022 - Shift 2 • General Awareness • Q32

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Which of the following is NOT a chemical compound?

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Correct answer: B

Explanation

The correct answer is Option 2 i.e. Air.

  • Air is not a chemical compound. It is a mixture of several gases.
  • A chemical compound is a substance formed when two or more different chemical elements are chemically bonded together in a fixed ratio.

Chemical formulas:

  • Water: H₂O
  • Baking Soda: It is also called as Sodium bicarbonate. Its chemical formula is NaHCO3.
  • Common Salt: It is also called as Sodium chloride. Its chemical formula is NaCl.