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Litmus paper is a pH indicator used to test materials for acidity.Blue litmus turns red in acidic conditions and red litmus turns blue in basic conditions.It is essentially a filter paper with absorbed water soluble mixture of different dyes extracted from lichens.(:
keerthika1998lekha
Litmus paper is a paper that is used to identify whether a solution is acidic or basic.
litmus paper is of two types:
red litmus and blue litmus
If we dip red litmus on acid its color remains unchanged.
If we dip red litmus on basic solution, the paper turns blue.
If we dip Blue litmus on acid solution, the paper turns red.
If we dip blue litmus on basic solution, the color remains unchanged.

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