1.

An aqueous solution .A. turns phenolphthalein solution pink. On addition of an aqueous solution .B. to .A., the pink colour disappears. The following statementis true for solution.A. and .B..

Answer»

A is strongly basic and B is a WEAK base.
A is strongly ACIDIC and B is a weak ACID.
A has pH greater than 7 and B has pH less than 7
A has pH less thean 7 and B has pH greater than 7.

Solution :A solution with pH greater than 7 is alkaline and turns phenolphthalein PINK. A solution with pH less than 7 is acidic and decolourise pink colour.


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