litmus paper is the paper which is indicator it changes its colour to red when comes in contact with base and changes its colour into blue when comes in contact with a base.
Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often absorbed onto filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity.
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litmus paper is the paper which is indicator it changes its colour to red when comes in contact with base and changes its colour into blue when comes in contact with a base.
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Answer:
Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often absorbed onto filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity.
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