Acid turns blue litmus
Acids turn blue litmus red. Litmus paper is used as indicator to check acids and bases.
Which of the following is a strong acid?
Sulphuric acid is a strong acid because it is mineral acid and dissociate completely into ions.
Which gas is released when acid reacts with metals?
When acids react with metals hydrogen gas is released along with metal salt.
Which one is an organic acid?
Lactic acid is an organic acid because it is obtained from plants and animals naturally.
Which one of the following is a natural indicator
Turmeric is a natural indicator as it turns bases red. Soap containing bases change turmeric red.