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SSC GD 2021 PYQ — Question 37

SSC GD Constable (English) - 16th November 2021 Shift 1 • General Awareness • Q37

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 In a molecule of water, the ratio of the mass of hydrogen to that of oxygen is:

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. 1 : 8.

Other Information-

  • A molecule of water has a 1:8 ratio by mass of hydrogen and oxygen:
  • Hydrogen has atomic number 1, sign (H) and atomic weight 1.008.
  • The atomic mass of hydrogen is 1.
  • The atomic number of oxygen is 8, and the sign is (O).
  • The atomic mass of oxygen is 15.999.