Question

which I of the following is chemical change
(a) growth of plants
(b) freezing of water
(c)rusting of iron
(d)mixing of iron filings and sand​

Answer 1

Answer:

Mixing of iron fillings and sand are the chemical change.

And the remaining three are physical changed.

Explanation:

hope it helps you!

Answer 2

Answer:

Ans is (c)

Rusting of iron