Which of the following colours does litmus turn when added to acid?

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Blue

Red

Yellow

Green

answer is B.

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Detailed Solution

The litmus paper turns red when added to acid.
Indicators are used to detect the nature of acidic and basic solutions. Litmus is a natural indicator which is widely used in laboratories for the detection of acidic and basic properties. An acidic solution is detected if litmus paper turns red and a basic solution is detected when litmus paper turns blue.

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