Question

A MULTIPLE CHOICE TYPE QUESTIONS : Tick (v) the correct answer
1. Which of the following is not a physical change ?
(a) melting of wax
(b) tearing a piece of pater
(c) dissolution of salt in water
(d) digestion of food●

2. Which of the following is a chemical change?
(a) breaking of a brick (b)evaporation of a liquid (c) burning of a candle (d) moving of a wheel●

3. Chemical changes are
(a) always irreversible (b) always reversible (c) mostly irreversible (d) mostly reversible●

4. During the dissolution of urea, heat
(a) is absorbed
(b) is evolved
(c) does not change (d) none of these●

​

Answer 1

Answer:

1.(d)

2.(c)

Explanation:

I hope it helps you dear

Please mark my answer as the BRAINLIEST