Suppose you have four test tubes labelled as 'A', 'B', 'C' and 'D', 'A' contains plain water, 'B' contains solution of alkali, 'C' contains solution of an acid, and 'D' contains solution of sodium chloride. Which one of these solutions will turn phenophthalein solution pink?

Solution 'A'

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Solution 'B'

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Solution 'C'

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Solution 'D'

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Solution

The correct option is B Solution 'B'
Phenolphthalein turns pink in basic condition and become colourless in acidic condition. Here, solution B contains alkali i.e base. So, this solution becomes pink in colour.

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Suppose you have four test tubes labelled as 'A', 'B', 'C' and 'D', 'A' contains plain water, 'B' contains solution of alkali, 'C' contains solution of an acid, and 'D' contains solution of sodium chloride. Which one of these solutions will turn phenophthalein solution pink?

The correct option is B Solution 'B'Phenolphthalein turns pink in basic condition and become colourless in acidic condition. Here, solution B contains alkali i.e base. So, this solution becomes pink in colour.

The correct option is B Solution 'B'
Phenolphthalein turns pink in basic condition and become colourless in acidic condition. Here, solution B contains alkali i.e base. So, this solution becomes pink in colour.