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Question-1 Use the following information to answer next question.
Shyam performed an activity in which he took a small amount of yeast. He kneads yeast powder along with flour to form dough. He then kept the dough for 2 hrs, and observed that volume of dough increased.
(A) Carbon dioxide
(B)Acetic acid
(C)Alcohol
(D)Oxygen



Std 8
CBSE


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