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Phenolphthale...

Question

Phenolphthalein shows pink colour with which one of the following substances?

A

Vinegar

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B

Milk of magnesia

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C

Grape juice

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D

Orange juice

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Solution

The correct option is B
Milk of magnesia

Phenolphthalein shows pink colour with bases. Milk of magnesia is a basic substance as it contains magnesium hydroxide as base.

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