Question

dry crystals of citric acid or placed on blue Litmus Paper the colour of the Litmus Paper does not turn into red colour but you should drops of water sprinkled on it the Litmus Paper changes into red colour what is the reason name the acid obtained by dissolving carbon dioxide in water​

Answer 1

Answer:

Presence of water, Carbonic acid

Explanation:

Presence of water is one of the essential conditions for working of litmus paper.

Water + CO2 gives carbonic acid (H2CO3)