Question

ᵂʰᵃᵗ ⁱˢ ˡⁱᵗᵐᵘˢ?
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Answer 1

Explanation:

Answer

A coloring matter from lichens that turns red in acid solutions and blue in alkaline solutions and is used as an acid-base .

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Answer 2

Answer:

Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often adsorbed onto filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity.

Explanation:

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