Question

Acetic acid will turn red litmus to

• A. Blue
• B. Dark blue
• C. Red
• D. Pink

Answer 1

The correct option is C

Red

Indicators which occur naturally are called natural indicators while indicators synthesised in a laboratory are known as synthetic indicators. Example of natural indicators are litmus, red cabbage, etc. Examples of synthetic indicators are phenolphthalein, methyl orange. Litmus is a natural indicator obtained from lichens. Acids turn red litmus to blue and bases turn blue litmus to red. Acetic acid is an acid and red litmus will remain red when dipped into the acetic acid solution.