Question

2. Which of the following are physical changes?
A. Melting of iron metal
C. Drawing a wire from iron metal
B. Rusting of iron metal
a. A and B
b. B and C
C. A and C
d. B only
3. Which of the following is a physical change?
a. Sublimation
b. Evaporation
c. Boiling water
d. All of these​

Answer 1

Answer:

2.

C). A and C

3.

d) all of these

Answer 2

Answer:

Explanation:

Rusting of iron is a redox reaction and its a chemical change, apart from this all others are physical changes.

The rusting of Iron (Iron in contact with water forms the anode and in contact with air forms the cathode. At the anode iron is oxidised to Fe  +2

and at the cathode oxygen is reduced to water.