Question

Which of the following is a chemical change?
a) O Cooking of vegetables
b) O Rusting of iron
Combustion of magrhasium ribbon
d) O All of these​

Answer 1

Answer:

All of these.

Explanation:

Chemical change can be defined as a change in which a new substance is formed.

Answer 2

Answer:

d) all of these ..

Explanation:

becoz in chemical change is permanent change and all the above are not get turned into their original way.