Question

X is a mixture of sodium bicarbonate and Y. X is extensively used in baking breads and on heating it gives out Z gas. This gas rises the dough and makes the bread spongy and puffy. Identify X, Y and Z from the options given below.

• A. X- Baking soda, Y- Potassium hydrate, Z- Oxygen
• B. X- Washing soda, Y- Potassium nitrate, Z- Nitrogen
• C. X- Baking powder, Y- Potassium hydrogen tartarate, Z- Carbon dioxide
• D. X- Baking powder, Y- Potassium hydrogen phosphate, Z- Carbon monoxide

Answer 1

The correct option is C X- Baking powder, Y- Potassium hydrogen tartarate, Z- Carbon dioxide

Baking powder is a mixture of sodium bicarbonate (${\text{NaHCO}}_3$) and potassium hydrogen tartarate (${\text{KC}}_4{\text{H}}_5{\text{O}}_6$). It is extensively used in baking breads and on heating liberates carbon dioxide gas. This gas rises the dough, thus making the bread spongy and puffy. Thus X is baking powder, Y is potassium hydrogen tartarate and Z is carbon dioxide.