Q7 / 125 · BITSAT 2021 · 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 $\mathrm{S}_{8}$ molecules.
  • C
    $\mathrm{S}_{2}$ is paramagnetic like oxygen
  • D
    $\mathrm{S}_{8}$ ring has a crown shape.

Solution

The $\mathrm{S}_{6}$ molecule has a chair-form hexagon ring with the approx same bond length as that in $\mathrm{S}_{8}$, but with some what smaller bond angles i.e. bond lengths are approx same but bond angles are different. Figure

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

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