short note on ph paper and litmus
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ph paper : is used to check weather the liquid is acid or basic on the scale
litmus paper : it is used to check weather liquid is acid or base
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Litmus is a solution of different dyes made from lichen. This is then put onto filter paper. The paper can then be used to give a rough indication of the pH value of a solution. Blue litmus paper will turn red, when acid is present; red litmus paper will turn blue when alkalines are present.
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