Question

Assertion :There is a very little difference in acidic strengths of $H_{3}P{O}_4$, $H_{3}P{O}_3$ and $H_{3}P{O}_2$. Reason: The number of unprotonated oxygen responsible for an increase of acidic strength due to inductive effect remains the same.

Read the above assertion and reason and choose the correct option regarding it.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

There is a very little difference in acidic strengths of $H_{3}P{O}_4$, $H_{3}P{O}_3$ and $H_{3}P{O}_2$ as they all have one unprotonated oxygen which is responsible for increasing acidic strength due to inductive effect.