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ICSE Class 10 Chemistry Question 3 of 23

Model Paper 2 — Question 3

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3
Question

Question 1(iii)

If the RMM of carbon monoxide is 28, then its vapour density is:

  1. 7
  2. 56
  3. 14
  4. 88
Answer

14

Reason —

Given,
The relative molecular mass(RMM) of carbon monoxide = 28.
The vapour density of carbon monoxide = ?

Vapour density =  Relative molecular mass2\dfrac{\text{ Relative molecular mass}}{2}

Vapour density = 282\dfrac{28}{2} = 14

Hence, the vapour density of carbon monoxide is 14.