Question

$Ca(H_{2}P{O}_4{)}_2$ in baking powder:

• A. Behaves as an acid in moist condition and decomposes $NaHC{O}_3$ to give $C{O}_2$
• B. Behave as a base in moist condition and gives $H_{3}P{O}_4$
• C. Behaves as binder
• D. Behaves as a filler

Answer 1

Answer: (A)

Behaves as an acid in moist condition and decomposes $NaHC{O}_3$ to give $C{O}_2$

The baking powder consists of sodium bicarbonate and calcium dihydrogen phosphate.In this process the $H_2{PO}_4$ acts as acid in the baking powder and then reacts with ${NaHCO}_3$ so that carbon dioxide that expands in the food items.When sufficient heat is given bond will breaks between $Ca$ and $H_2{PO}_4$ and then reacts with

$NaHC{O}_{34}$ and the carbon dioxide will be formed.