Q.

What happens when a red litmus paper is dipped into a base solution?

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a

The colour of litmus paper vanishes out

b

Litmus paper turns green

c

Litmus paper turns blue

d

No change in the colour of the litmus paper

answer is A.

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Detailed Solution

Litmus paper is a commonly used acid-base indicator. When blue litmus paper is dipped in an acidic solution it turns to red colour. when red litmus paper is in a basic solution it turns to blue colour.

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