Question

What is red litmus and what is blue litmus

Answer 1

These are two types of litmus papers and acids turn red litmus blue and bases turn blue litmus red

Answer 2

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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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