Classify the following as chemical or physical changes:
(i) cutting of trees,
(ii) melting of butter in a pan,
(iii) rusting of almirah,
(iv) boiling of water to form steam,
(v) passing of electric current, through water and the water breaking down into hydrogen and oxygen gas,
(vi) dissolving common salt in water,
(vii) making a fruit salad with raw fruits and
(viii) burning of paper and wood.
Physical changes
(i) cutting of trees
(ii) melting of butter in a pan
(iv) boiling of water to form steam
(vi) dissolving common salt in water
(vii) making a fruit salad with raw fruits
Chemical changes
(iii) rusting of almirah
(v) passing of electric current, through water and the water breaking down into hydrogen and oxygen gas
(viii) burning of paper and wood