Question

Which of the following solution will turn red hibiscus paper to blue colour?

• A. Solution having pH 13.
• B. Solution having pH 6.
• C. Solution having pH 1.
• D. Solution having pH 8.

Answer 1

Answer: (A), (D)

The correct options are
A

Solution having pH 13.

D

Solution having pH 8.

Hibiscus paper gives a red colour in acidic solution and blue colour in basic solution. Acids have pH between 0 to 6 and bases have pH between 8 to 14.
Here, the solutions having pH 8 and pH 13 are basic in nature and turns red hibiscus paper to blue colour.