Chemistry-10th Acids, Bases and Salts CBSE Board 2024 Medium
An aqueous solution ‘A’ turns phenolphthalein solution pink. When another aqueous solution ‘B’ is added to th…
An aqueous solution ‘A’ turns phenolphthalein solution pink. When another aqueous solution ‘B’ is added to the pink solution, the pink colour disappears. Now when a few drops of solution ‘A’ are added to this reaction, the mixture appears pink again. The respective changes in the nature of the solution are from :
- (a)acidic → basic → basic
- (b)basic → acidic → acidic
- (c)acidic → basic → acidic
- (d)basic → acidic → basic
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