Question

.What happens when a dry blue litmus paper is touched to acid powder pls answrr it fast …….need help

Answer 1

Answer:

If blue litmus paper is dipped in the aqueous solution[solution in which water is solvent] of acid then only blue litmus paper turns red. Water is necessary to change the colour of litmus paper because acid dissociates hydrogen ions in aqueous solution.

Answer 2

Answer:

If blue litmus paper is dipped in aqueous acid solution then the Blue litmus turns to red . So if blue litmus is touched to acid powder there is no reaction