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Question

China rose indicator is turned green by a certain solution. The solution is:

A
acidic
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B
basic
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C
neutral
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D
all of these
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Solution

The correct option is B basic
An indicator is usually a weak acid or a weak base which changes colour in acidic or basic solutions. The pigment anthocyanin present in the china rose flower makes its solution an indicator.

China rose solution gives a dark pink colour with acid and green colour with base.

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