Q18 / 90 · JEE Main 2016 (10 Apr Online) · Chemistry

Identify the incorrect statement :

Correct answer
A
The S-S-S bond angles in the $S_{8}$ and $S_{6}$ rings are the same.
B
Rhombic and monoclinic Sulphur have $S_{8}$ molecules.
C
$S_{2}$ is paramagnetic like oxygen.
D
$S_{8}$ ring has a crown shape.

Solution

Sulphur have puckered S₈ rings with crown conformation, and S₆ rings arranged in a chair conformation.

1) S-S-S bond angles in

S_{8}

and

S_{6}

rings are different

2) Rhombic & monoclinic are

S_{8}

molecules but the arrangement of the molecules in space are different.

3)

S_{2}

O_{2}

both are paramagnetic according to MOT

Hence, the correct answer is option: 'A'.