Question

Aqueous solution of which of the following salts
turns blue litmus red?
CH3COONa
Na2SO4
©
K3C03

NH4CI​

Answer 1

Answer:

Litmus paper can be used as an indicator to know whether a given substance is acidic, basic or neutral in nature.

Acidic substances turn blue litmus paper red but they have no effect on the red litmus paper.

Basic substances turn red litmus paper blue but have no effect on the blue litmus paper.

On the other hand, neutral substances have no effect on the blue as well as the red litmus paper.

Hence, the correct answer is option (D).

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