Which of the following statement is wrong?

Options

A. The stability of hydrides increases from `NH_3` to `BiH_3` in group 15 of the Periodic table
B. Nitrogen can't form `d pi – P pi` bond
C. Single N-N bond is weaker than the single P-P bond
D. `N_2 O_4` has two resonance structure

Answer

A

Explanation

Thermal stability of the hydrides decreases as we go down the group in Peridoic Table for group 15 (N-family)
Least stable ` BiH_3 lt SbH_3 lt As H_3 lt PH_3 lt NH_3`
Bond energy `- 225 " " 247 " " 322 " " 391 `
` kj mol^(-1)`
b) Due to absence of d-orbital, nitrogen can.t from `d pi -d pi ` bond. c) The N-N bond (BE 160 kJ `mol^(-1)` ) is weaker than P-P bond (BE 209 kJ `mol^(-1)`). d) `N_2 O_4` can form two resonance structures.