Question

Which one of the following will turn blue-litmus red?

A

Vinegar

B

Lime water

C

Baking soda solution

D

Washing soda solution

Medium

Solution

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Correct option is
A

Vinegar

The liquids turns the litmus paper different colours because one is acid one is base and one is neutral. Litmus paper is an indicator which can identify whether the substance is an acid or base.

Vinegar is the diluted form of acetic acid as being acid it will turn blue litmus red.

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