Leavening agents like ___ are used in cake and bread making process because they give out ___ gas which raises the food, lightens and softens it.
Baking powder/baking soda, carbon dioxide
Bleaching powder, Chlorine
Water, hydrogen gas
None of these
Both, baking soda and baking powder, upon heating release CO2 which raises the baking goods.
(a) What is "baking powder"? How does it make the cake soft and spongy?
(b) In addition to sodium hydrogen carbonate, baking powders contain a substance X. Name the substance X. What is the role of substance X in the baking powder?