Q57 · CSIR-NET Chemistry, December 2011

Paper: CSIR-NET December 2011 · Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Phosphazenes Sn Compounds · Marks: 2 · Difficulty: Medium

The material that exhibits the highest electrical conductivity among the following sulfur - nitrogen compounds is

(a)$\mathrm{S}_{4} \mathrm{N}_{4}$

(b)$\mathrm{S}_{7} \mathrm{NH}$

(c)$\mathrm{S}_{2} \mathrm{N}_{2}$

(d)$(\mathrm{SN})_{\mathrm{x}}$

Answer

Answer: D ✓ checked by 4AB · confidence high

Explanation

Polythiazyl (SN)ₓ is a one-dimensional metal (and superconductor below 0.3 K); S₄N₄, S₂N₂ and S₇NH are molecular insulators.

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