Source: Extra Practice
When a drop of solution 'X' is added to red litmus paper, the paper turns blue. Solution 'X' is likely to be:
Options
Option A
Vinegar
Option B
Curd
Option C
Sugar solution
Option D is correct
Detergent solution
Explanation
Bases are substances that turn red litmus paper blue. Detergent solution is a common example of a basic solution. Vinegar and curd are acidic substances, which would turn blue litmus red. Sugar solution is a neutral substance and would not change the color of either red or blue litmus paper.