Question

1. Sublimation of iodine is a
(a) Chemical change
(b) Physical change
(c) Periodic change
(d) irreversible change
2. When magnesium mbone burnt, heat and line are produced. It is an example of
(a) Chemical change
(b) physical and irreversible change
(c)Chemical and exothermic change (d)Chemical and endotheme change​

Answer 1

Answer:

1. (b)physical change

2. (c) chemical and exothermic change

Explanation:

Answer 2

Answer:

1) PHYSICAL CHANGE

2) CHEMICAL CHANGE AND EXOTHERMIC CHANGE