Question

An aqueous solution with pH = 0 is

• A. Acidic
• B. Alkaline
• C. Neutral
• D. Amphoteric

Answer 1

The correct option is A

Acidic

$pH=-log\left[H^{+}\right]$ or, $H^{+}={10}^{(-pH)}$
As, $pH=0$ or, $\left[H^{+}\right]={10}^{(-0)}$, then $\left[H^{+}\right]=1$
Or, we can say that concentration of $\left[H^{+}\right]=1mol/litre$
The concentration of $\left[H^{+}\right]$ ions and acidity of a solution are directly proportional to each other. Since the concentration of $\left[H^{+}\right]$ ions is very high, the solution will be highly acidic in nature.