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Question

Ram was given a jar filled with distilled water. What would be his observation when he adds a drop of phenolphthalein in this jar?

A
Water turns red in colour
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B
Water turns blue in colour
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C
Water remains colourless
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D
Water turns pink in colour
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Solution

The correct option is C Water remains colourless
Phenolphthalein is a laboratory indicator. It remains colourless when added to acidic or a neutral substance. But it turns to pink when added to basic substance. Since distilled water is a neutral compound, it remains colourless when phenolphthalein is added to it.

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