Assertion : The carbonic acid is stronger acid than phenol .
Reason : The hybrid of bicarbonate ion has two equivalent contributing structures, while hybrid of phenoxide ion does not contain such equivalent contributing structures.

Options

A. If both the assertion and reason are true statement and reason is correct explanation of the assertion .
B. If both the assertion and reason are true statement but reason is not a correct explanation of the assertion .
C. If the assertion is true but the reason is a false statement.
D. If both assertion and reason are false statements.

Answer

A

Explanation

The phenoxide ion `C_(6)H_(5)--O^(-)` , does not have any contributing structure but `HCO_(3)^(-)` ion has two contributing structure , that is why `H_(2)CO_(3)` is stronger acid than `C_(6)H_(5)OH`