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Question

The natural indicator litmus is extracted from:

A
beetroot
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B
china rose
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C
lichens
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D
turmeric
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Solution

The correct option is B lichens
The natural indicator litmus is extracted from lichens. Acids turn blue litmus red and bases turn red litmus to blue.
China rose contains anthocyanin which also acts as the natural indicator. Other natural indicators are beetroot and turmeric.
Hence, the correct answer is the option (C).

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