Question

Q 1. Classify the following as chemical or physical changes:  passing of electric current, through water and the water breaking down into hydrogen and oxygen gas,  dissolving common salt in water,  making a fruit salad with raw fruits and  Burning of paper and wood.

Answer 1

Answer:

a physical change

b chemical change

c physical change

d chemical change

Answer 2

Answer:(a) Chemical Change

             (b) Physical Change

             (c) Physical Change

             (d) Chemical Change