(i) Single N–N bond is stronger than the single P–P bond.
(ii) PH3 can act as a ligand in the formation of a coordination compound with transition elements.
(iii) NO2 is paramagnetic.
(iv) Covalency of nitrogen in N2O5 is four
Correct Answer: (i) Single N–N bond is stronger than the single P–P bond
Explanation: Single N–N bond is weaker than the single P–P bond.