Which of the following statements is wrong? (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
N-N sigma bond (single bod) is weaker than P-P sigma bond (single bond) due to the small bond length between the nitrogen atoms. The lone pair of electrons of both the atoms nitrogen repel each other making the single bon between N−N weaker than P-P sigma bond.In P−P bond the repulsion between sigma bond and lone pair electrons is less as the size of phosphorous is large.
