Question

Consider the following statements

Statement I: N–N has less bond strength than P–P

Statement II: All group-15 elements in +3 oxidation state undergo disproportionation.

In the light of above statements, choose the correct option.

(1) Statement I and statement II both are correct

(2) Statement I and statement II both are incorrect

(3) Statement I is correct, statement II is incorrect

(4) Statement I is incorrect, statement II is correct

Answer 1

Correct option is : (3) Statement I is correct, statement II is incorrect

Due to small size of nitrogen interelectronic repulsion takes place and N–N bond strength is less than P–P bond strength. Statement I is correct.

Not all group-15 elements undergo disproportionation in +3 oxidation state. Statement II is incorrect.