Question

burning of fuel is a _ chemical change whereas rusting of iron is a _chemical change

Answer 1

Explanation:

burning of iron is a physical change as it can be again regain its lustre by rubbing it with a sand paper. HENCE IT IS A PHYSICAL CHANGE

On the other hand burning of fuel is a Chemical Change as we can't reverse it or get the old substance back.

Answer 2

Question:

Burning of fule is a_chemical change, whereas rusting of iron is a_chemical change.

Answer:

irreversible , physical

Explanation:

Burning of iron is a irreversible chemical change, whereas rusting of iron is a physical chemical change.

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