Question

Assertion: $H_{2}O$ is polar molecule.​

Reason: Oxygen is more electronegative than hydrogen.​

• A. (A) is true, but (R) is false .
• B. (A) is false, but (R) is true​
• C. Both (A) and (R) are true, and (R) is correct explanation of (A)​
• D. Both (A) and (R) are true, but (R) is not a correct explanation of (A)​

Answer 1

The correct option is C Both (A) and (R) are true, and (R) is correct explanation of (A)​


Water molecule contains 2 hydrogen atom and one oxygen atom. And structure of $H_{2}O$ molecule is bend instead of linear. Due to this reason water is polar molecule.

The polarity of $H_{2}O$ molecule arises due to difference in electronegativity of hydrogen and oxygen atom. As oxygen is more electronegetive than hydrogen, oxygen tends to pull the electrons towards itself.

Therefore, Both (A) and (R) are true, and (R) is correct explanation of (A)​