Question

energy is absorbed
A. Multiple Choice Questions (MCQs)
1. Which of the following is not a characteristic of physical change?
formation of new substance
b.
reversible
temporary
d. change in physical properties
2. A physical change involves
no change in energy
b.
energy is released
d.
none of these
3. Which of the following is not a chemical change?
photosynthesis
b. digestion
tearing a paper
d.
rusting of iron
4. Which of the following is a characteristic of chemical change?
permanent
b. reversible
no energy change
composition does not change
2.
d.​

Answer 1

Answer:

1)a.reversible

2)energy is released

3)rusting of iron

4)no energy composition not change