The aqueous solution of one of the following salts will turn phenolphthalein indicator pink. This salt is:

K C l

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K_{2} S O_{4}

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K_{2} C O_{3}

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K N O_{3}

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Solution

The correct option is D $K_{2} C O_{3}$
Phenolphthalein is an indicator used for alkaline solutions as it turns the basic solution pink in color. Potassium carbonate has alkaline carbonate ions which turn the solution to pink.

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Similar questions

A solution turns phenolphthalein indicator pink. The most likely pH of this solution will be :

(a) 6

(b) 4

(d) 7

The aqueous solution of one of the following salts will turn red litmus to blue. This salt is :

(a) potassium sulphate

(b) sodium sulphate

(d) potassium carbonate

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