Question

Question 5
The gas released during the preparation of bread is

(a) oxygen
(b) carbon dioxide
(c) nitrogen
(d) sulphur dioxide

Answer 1

(b) carbon dioxide

The gas released during the preparation of bread is carbon dioxide. Fermentation in baking is a process where yeasted dough rises, developing volume and flavor. It occurs when yeast converts sugars present in flour into carbon dioxide and ethyl alcohol. Carbon dioxide gas is trapped in the dough which causes the dough to rise.