Red litmus paper is used to check for basicity. It turns blue when exposed to bases. Blue litmus paper is used to check for acidity. It turns red when exposed to acids.
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just saying that I'm 12 and i know the answer!an acid will turn red in litmus paper or a pinkcolour.if it is a week acid it will turn yellow or green. :)
The old and faithful litmus paper test could be used. Acid turns blue litmus paper red and a base would turn red litmus paper blue. An easy way of making litmus paper is to get a strip of red cardboard paper and wet it with saliva. under normal circumstances,should turn blue since salivary juices are alkaline. After, you can test with your water sample to verify acidity or basicity.
it is base
the color of the litmus paper does not change.
Lemon juice contains citric acid so blue litmus paper dipped in lemon juice will turn red indicating that it is acidic.Blue litmus paper become red in acidic solutions (lemon juice contain citric acid).