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Question

China rose is which type of indicator?

A
Olfactory indicator
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B
Synthetic indicator
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C
Natural indicator
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D
None of the above
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Solution

The correct option is C Natural indicator
Soak some petals of china rose in warm water for a couple of hours. The red-colored solution is used as an indicator for detecting an acid or a base solution. It turns into magenta in an acidic medium and green in a basic medium. Hence, it is a natural indicator.

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