An aqueous solution turns red litmus solution blue. Excess addition of which of the following solutions would reverse the change ?
A. Baking powder
B. Lime
C. Ammonium hydroxide solution
D. Hydrochloric acid
Answer:D
An aqueous solution turns red litmus solution blue. Excess addition of which of the following solutions would reverse the change ?
A. Baking powder B. Lime C. Ammonium hydroxide solution D. Hydrochloric acid