Question

Question 23.
Which among the following is not a base ?
(a) $\text{NaOH}$
(b) $\text{KOH}$
(c) ${\text{NH}}_4\text{OH}$
(d) ${\text{C}}_2{\text{H}}_5\text{OH}$

Answer 1

${\text{C}}_2{\text{H}}_5\text{OH}$, also known as ethanol or ethyl alcohol, is an organic compound and is somewhat acidic in nature. It does not dissociate and produce ${\text{OH}}^{-}$ ions in the solution like other bases mentioned. So it is not a base. Hence, the correct option is (d)