Question

Assertion: The oxoacids of phosphorus containing P-H bonds are strong reducing agents.

Reason: The P-H bonds present in these acids dissociate to give H⁺ ions.

Options

• If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.

• If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.

• If Assertion is CORRECT but Reason is INCORRECT.

• If Assertion is INCORRECT but Reason is CORRECT.

Answer 1

If Assertion is CORRECT but Reason is INCORRECT.

Explanation:

Some oxoacids of phosphorus, like H₃PO₂ and H₃PO₃ contain P-H bonds, and they act as strong reducing agents. However, the P-H bonds are not ionisable and do not release H⁺ ions. Hence, the reason is incorrect, even though the assertion is correct.