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Which of the following statements is wrong?

(i) Single N-N bond is stronger than the single P-P bond.

(ii) PH_{3} can act as a ligand in the formation of a coordination compound with transition elements.

(iii) NO_{2} is paramagnetic.

(iv) Covalency of nitrogen in N_{2}O_{5}  is four

Answers (1)

The answer is the option (i).Single P-P bond is stronger than single N-N bond, however, naturally occurring nitrogen forms p(pi)-p(pi) multiple bonds and becomes much more stable than phosphorous.

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