Question

Wheat dough if left open , after few days it starts to emit a foul smell and becomes unfit for use give reason​

Answer 1

Answer:

because the dough starts fermentation in which the sugar or carbohydrates get converted into acids or alcohol and CO2.

in this CO2 makes a foul smell.

Answer 2

dough if left open. after few days it start to emit a foul smell and becomes unfit for us because it is acted upon by bacteria and we can say it is oxidised