Question

1.Anaerobic bacteria digest animal waste and produce biogas(change- A). The biogas is Then burnt as fuel(change-B). The following statements pertain to these changes.Choose correct one.

A)Process A is a physical change
B)Process B chemical change
C)Both processes AandB are chemical changes
D)None of these processes is a chemical change.

Answer 1

C)both process A and B are

chemical changes

Answer 2

Answer:

processes A and B are chemical changes

Explanation:

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