What is the test for acids and bases using litmus paper?
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acids - blue litmus paper to red
bases- red litmus paper to blue
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The main use of litmus is to test whether a solution is acidic or basic.
Light Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple.
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