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JEE PYQ: P Block Elements Question 43

Question 43 - 2020 (09 Jan Shift 1)

The compound that cannot act both as oxidising and reducing agent is:

(1) $\text{H}_3\text{PO}_4$

(2) $\text{HNO}_2$

(3) $\text{H}_2\text{SO}_3$

(4) $\text{H}_2\text{O}_2$

Show Answer

Answer: (1)

Solution

In $\text{H}_3\text{PO}_4$, oxidation state of P is +5, which cannot be oxidised further to a higher oxidation state. Hence, it cannot act as reducing agent.


Learning Progress: Step 43 of 77 in this series