JEE Main · 2023 · 11 Apr 2023 · Shift 2 · Solid State

Which one of the following pairs is an example of polar molecular solids?

(A) $SO_{2} (s), NH_{3} (s)$ ✓ Correct
(B) $SO_{2} (s), CO_{2} (s)$
(C) $HCl (s), AlN (s)$
(D) $MgO (s), SO_{2} (s)$

Answer: (A)

Solution

Polar molecular solids are built from neutral molecules that carry a permanent dipole and are held by dipole-dipole forces. Sulphur dioxide (bent) and ammonia (pyramidal) are both polar, so their solids are polar molecular solids. Carbon dioxide is linear and non-polar, magnesium oxide and aluminium nitride are ionic solids, and the hydrogen chloride entry is paired with ionic aluminium nitride. The pair in which both members are polar molecular solids is solid sulphur dioxide and solid ammonia.

JEE Main · 2023 · 11 Apr 2023 · Shift 2 · Single correct option

Practise more: all JEE Main PYQs on Solid State →

More JEE Main questions on Solid State

Which of the following material is not a semiconductor.
JEE Main 2024View solution →
The values of conductivity of some materials at $298.15 K^{- 1} Sm^{- 1}$ are $2.1 \times 1 0^{3}$ , $1.0 \times 1 0^{- 16}$ , $1.2 \times 10$ , $3.91$ , $1.5 \times 1 0^{- 2}$ , $1 \times 1 0^{- 7}$ , $1.0 \times 1 0^{3}$ . The number of conductors among the ma …
JEE Main 2024View solution →
A compound is formed by two elements X and Y. The element Y forms cubic close packed arrangement and those of element X occupy one third of the tetrahedral voids. What is the formula of the compound?
JEE Main 2023View solution →
Number of crystal systems from the following where body centred unit cell can be found, is.....

Cubic, tetragonal, orthorhombic, hexagonal, rhombohedral, monoclinic, triclinic.
JEE Main 2023View solution →
The correct relationship between unit cell edge length 'a' and radius of sphere 'r' for face-centred and body centred cubic structures respectively are:
JEE Main 2023View solution →
An atomic substance A of molar mass $12 g mol^{- 1}$ has a cubic crystal structure with edge length of 300 pm . The no. of atoms present in one unit cell of A is ____. (Nearest integer)

Given the density of A is $3.0 g mL^{- 1}$ and …
JEE Main 2023View solution →