Question

D. CHOOSE THE CORRECT ANSWER
1. During a physical change
(a) energy is evolved
colour, shape or state are changed
new substance is formed
light is produced
2. An example of chemical change is
(a) dissolution of sugar in water
(c) digestion of food
formation of cloud
3. A chemical change is accompanied by
(a) heat
(c) sound
(b) gas
(d) all of these
4 an alloy among the following is
copper
steel
nickel
iron
5 process of crystallisation is not applicable in
obtaining salt from sea
rusting of iron
formation of snow flakes
obtaining sugar crystal from it's solution​

Answer 1

Answer:

1 a

2 c

3 d

4 steel

5 rusting of Iron

:)

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Answer 2

Answer:

1.(b)

2.(c)

3.(d)

4.(c)

5.(b)