Question

The pH of boiling water is $6.4$. This implies that boiling water is:

• A. Slightly basic
• B. Slightly acidic
• C. Neutral
• D. Amphoteric

Answer 1

The correct option is C

Neutral

The explanation for the correct option

(C) Neutral

pH

• pH generally from $0$(very acidic) to $14$ (very alkaline).
• pH should be thought of simply as a number that indicates the basic or acidic nature of a solution.
• The higher the hydronium ion concentration, the lower the pH value.
• The pH of a neutral solution is $7$.
• Values less than $7$ on the pH scale represent an acidic solution.
• Values greater than $7$ on the pH scale represent a basic solution.

the pH of boiling water

• When water is boiled, the concentration of hydrogen ions and hydroxide ions both rise to the same level. As a result, it is neutral.
• The pH of boiling water is $6.4$. This implies that boiling water is neutral.

The explanation for the incorrect option

Boiling water is neutral. Hence, options (A), (B), and (D) are incorrect.

Hence, option (C) is the correct answer.