Which among the following is NOT a polar molecular solid?

Which among the following is NOT a polar molecular solid?
  1. $\mathrm{CH}_{4}$
  2. $\mathrm{SO}_{2}$
  3. HCl
  4. $\mathrm{H}_{2} \mathrm{~S}$

Solution

Methane has symmetrical tetrahedral structure hence dipole moment is zero. Therefore it is non-polar.

Asked in: MHT CET 2020 (13 Oct Shift 1)

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