Science, asked by kalpana2681, 9 months ago

Why acid change the colour blue litmus to red?​

Answers

Answered by Anonymous
1

Explanation:

Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic (i.e. alkaline) conditions. The pigment in blue litmus reacts with H+ ions and changes chemically so the bonds are 'tuned' to reflect a longer wavelength of light to appear red to our eyes.

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