Question

Which of the following statements is true:

विकल्प

• Melting point of Phosphorous is less than that of Nitrogen.

• N₂ is highly reactive while P4 is inert.

• Nitrogen shows higher tendency of catenation than P.

• N-N is weaker than P-P.

Answer 1

N-N is weaker than P-P.

Explanation:

Other assertions that are wrong include: 

Due to its larger bulk, phosphorus has a greater melting point than nitrogen. 

Due to the creation of triple bonds, nitrogen is inert and has a reduced covalence due to the lack of d-orbitals.