Bright Tutorials Bright Tutorials
ICSE Class 10 Chemistry Question 4 of 23

Solved Sample Paper 5 — Question 10

Back to all questions
10
Question

Question 1(x)

The vapour density of carbon dioxide (C = 12 and O = 16) is ...............

  1. 32
  2. 16
  3. 44
  4. 22
Answer

22

Reason — Molecular weight of carbon dioxide = 12 + 2(16) = 12 + 32 = 44 g

Vapour density of gas =

Molecular weight2=442=22 g\dfrac{\text{Molecular weight}}{2} \\[0.5em] = \dfrac{44}{2} \\[0.5em] = 22 \text{ g}

Hence, vapour density of carbon dioxide is 22 g