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→About Litmus Paper
===About Litmus Paper===
: '''Litmus paper''' comes in two colours: Red and Blue.
: '''Litmus paper''' is a very simple [[Indicator (Chemistry)|indicator]] as it can only tell if something is [[acid]] or [[alkali]] but it cannot tell the exact [[pH]] of a [[solution]].
: '''Litmus paper''' cannot be used on a [[base]] unless it is in [[solution]].