Question

Himanshu has two substances A and B. When red cabbage extract is added to substance A, it turns green. Whereas, when the extract is added to substance B, it turns light pink. In addition, the solution of A and B turns red litmus to blue. Which of the following statement(s) is/are correct?

• A. The solution is neutral
• B. A has to be added to make the solution neutral
• C. B has to be added to make the solution neutral
• D. Insufficient information

Answer 1

The correct option is C

B has to be added to make the solution neutral

The extract of red cabbage turns green when mixed with A, indicates that A is basic and when mixed with B, it turns pink, which indicates that B is acidic.
But, when a solution of A and B is taken it turns red litmus to blue, this means that the solution is basic in nature. To turn this solution neutral, more acid is required. So more B should be added to make it neutral.