A) Sodium hydroxide Sodium chloride
B) Hydrochloric acid Sodium hydroxide
C) Sodium hydroxide acid Aluminum hydroxide
D) Hydrochloric acid Sodium chloride
Correct Answer: B
Solution :
Phenolphthalein is colorless in acidic medium (hydrochloric acid) and shows pink colour in basic medium (sodium hydroxide).You need to login to perform this action.
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