Question

Statement I : An indicator will allow to determine whether a solution is acidic or basic.
Statement II : Indicator will change colors in solutions with different pH.

• A. Statement I is True, Statement II is True and statement II is correct explanation of statements I
• B. Statement I is True, Statement II is True and statement II is NOT correct explanation of statements I
• C. Statement I is True, Statement II is False
• D. Statement I is False, Statement II is True
• E. Statement I is False, Statement II is False

Answer 1

The correct option is A Statement I is True, Statement II is True and statement II is correct explanation of statements I

A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually.

Hence, a pH indicator is a chemical detector for hydronium ions or hydrogen ions in the Arrhenius model.

Normally, the indicator causes the colour of the solution to change depending on the pH.

Hence, the correct option is A.