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Phenolphthalein

Ram was given...

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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Q. 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
(b) Water turns blue in colour
(c) Water remains colourless
(d) Water turns pink in colour

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

Q. Ram was given a jar filled with distilled water. What would be his observation when he adds a drop of phenolphthalein in this jar? (3 marks)

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Phenolphthalein

Standard VII Chemistry

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