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  3. An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change

. An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change

(a) Baking powder
 
(b) Lime
 
(c) Ammonium hydroxide solution
 
(d) Hydrochloric acid

Best Answer

Answer: The answer is (d) Hydrochloric acid

Explanation:
 
If the solution turns red litmus to blue colour then the solution should be basic in nature. Its effect can be neutralized by adding an acid hence (d) Hydrochloric acid is the answer.

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