Question

1 During physical and chemical changes:
(a) energy is always absorbed
(c) no energy is absorbed or released
(b) energy is always released
(d) energy is either absorbed or released​

Answer 1

Answer:

option d .................

Answer 2

Explanation

In case of physical change the absorption and evolution of energy does not take place . In case of chemical change the absorption and evolution of energy take place .

Answer

d option