Question

WHICH OF THE FOLLOWING ELEMENT DOESN'T SHOW ALLOTROPY?

1) NITROGEN

2) BISMUTH

3) PHOSPHORUS

4) ARSENIC

(SINGLE OPTION ONLY)

Comments

Hope you are satisfied with the answer now.

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yes

But why not bismuth?

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Bismuth due to its inner pair effect does not exist with variable oxidation state. It adopts layer structure. Hence, Bismuth does not show allotropy.

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Now I hope that you have understood it.

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Okk tq for your help

Answer 1

Correct answer is:- (1) Nitrogen 

Nitrogen does not show allotropy due to its weak N-N single bond. Therefore, ability of nitrogen to form polymeric structure is less. Hence, option A is correct.