Question

The two kinds of litmus paper are:

A

blue and red

B

blue and yellow

C

red and green

D

yellow and red

Medium

Solution

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Correct option is A)

Litmus paper is a natural indicator. A blue litmus paper turns red in acidic solutions and red litmus paper turns blue in basic solution. 

Blue/red litmus paper does not change color in the presence of a neutral solution.

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