Which of the following statements is wrong ?

Options

A. Single N_N bond is stroger then the single P__P bond.
B. `PH_(3)` can act as a ligand in the formation of coordination compound with transition elements.
C. `NO_(2)` is paramagnetic in nature.
D. Covalency of nitrogen in `N_(2)O_(5)` is four.

Answer

A

Explanation

True statement is that single N__N bond is weaker then the single P__P bond. This is why phosphorous show allotropy but nitrogen does not.
("i) `PH_(3)` acts as a ligand in the formation of coordination compound due to presence of lone pair of electrons.
(ii) `NO_(2)` is paramagnetic in nature due to presence of one unpaired electron. Structure of `NO_(2)` is

(iii) Covalency of nitrogen in `N_(2)O_(5)` is 4.