Assertion : Phosphoric acid has no reducing properties. Reason : Phosphoric acid does not contain $\mathrm{P}-\mathrm{H}$ bonds.

• Correct answer
  A

  If both assertion and reason are true and reason is the correct explanation of assertion.
• B

  If both assertion and reason are true but reason is not the correct explanation of assertion.
• C

  If assertion is true but reason is false.
• D

  If both assertion and reason are false.

Solution

Phosphoric acid is a tribasic acid, i.e, 3 hydroxyl groups are present.

Hence, the correct answer is option: 'A'.