Correct Answer: Option A

Explanation

The colour of a neutral litmus solution is purple.

Litmus solution is made up of purple dye which is extracted from Lichens.

It is a natural Indicator and it is used to indicate the presence of an acid or a base.

A litmus paper will turn red in the presence of an acid and it turns blue in the presence of a base.

There is an explanation video available below.

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