One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is
(A) hydrochloric acid
(B) tartaric acid
(C) acetic acid
(D) sulphuric acid
- Baking powder is composed of sodium hydrogen carbonate which is a weak base
- But, it makes the cakes bitter, so we add a weak acid to the powder.
From all the options, tartaric acid is the weakest acid.
So, the correct option is (b) tartaric acid