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Standard X
Chemistry
pH
In alkaline s...
Question

In alkaline solution, the colour of phenolphthalein indicator changes from :

A
pink to colourless
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B
pink to red
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C
red to colourless
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D
colourless to pink
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Solution

The correct option is D colourless to pink
In alkaline solution, the colour of phenolphthalein indicator changes from colourless to pink.

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