Question

Assertion :In gaseous phase,$H_{2}O$ and $H_2{O}_2$ both have bent structures. Reason: Bond angle of both $H_{2}O$ and $H_2{O}_2$ is ${104.5}^0$

• 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 D Both Assertion and Reason are incorrect

In gaseous phase, water molecule has a bent structure with a bond angle of ${104.5}^0$, whereas,$H_2{O}_2$ bas a non-planar structure both in gas and solid phases. For $H_2{O}_2$, the dihedral angles in gas and solid phase are ${111.5}^0$ and ${90.2}^0$ respectively. For $H_2{O}_2$, the bond angles in gas and solid phase are ${94.8}^0$ and ${101.9}^0$ respectively.