Which of the following compound is differentiated by `NaHCO_(3)` as well as by `NaOH`?

Options

A.
B.
C.
D.

Answer

C

Explanation

For a compound to give `NaHCO_(3)` test positive, it must be more acidic than `H_(2)CO_(3)(pK_(a)=6.4)`
And for a compound to give `NaOH` test positive, it must be more acidic than `H_(2)O(pK_(a)=15.7)`.
For `NaHCO_(3)` as well as by `NaOH`.