Question

The red cabbage will give pink colour in

• A. Lime water
• B. Vinegar
• C. Lemon
• D. Soap

Answer 1

Answer: (B), (C)

The correct options are
B Vinegar
C Lemon

Red cabbage is a visual indicator which changes its colour in acidic or basic media. It gives dark green colour in basic media and pink colour in acidic media. Vinegar contains acetic acid and lemon contains citric acid. These will change the colour of the red cabbage solution to pink. Soap contains sodium hydroxide and lime water contains calcium hydroxide These will change the colour of the red cabbage solution to dark green.