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KCET2007ChemistrySome Basic Concepts of Chemistry

Which one of the following has maximum number of atoms of oxygen?

Options

  1. A2 ~g of carbon monoxide
  2. B2 ~g of carbon dioxide
  3. C2 ~g of sulphur dioxide
  4. D2 ~g of water

Correct answer

D. 2 ~g of water

Step-by-step solution

Number of oxygen atom in 2 ~g of CO = 2 28 6.022 10²³ 1 Number of oxygen atom in 2 ~g of CO ₂ = 2 44 6.022 10²³ 2 Number of oxygen atom in 2 ~g of SO ₂ = 2 64 6.022 10²³ 2 Number of oxygen atom in 2 ~g of H ₂ O = 2 18 6.022 10²³ 1 Hence, 2 ~g of H ₂ O has maximum number of atoms of oxyen.

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