Question

Shaila took about $10c{m}^3$ of a diluted Potassium hydrogen carbonate solution in a test tube. To this solution she added few drops of universal indicator. The colour of the solution turned :

• A. orange
• B. green
• C. blue
• D. yellow

Answer 1

The correct option is C blue

Potassium hydrogen carbonate (KHCO3) is

basic in nature because it is a salt of strong

base (KOH) and weak acid (H2CO3). So, the

colour of the solution turns blue on adding

universal indicator.

Hence, option C is correct.