Question

5. Classify the following as chemical or physical changes: • cutting of trees, • melting of butter in a pan, • rusting of almirah, • boiling of water to form steam, • 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:

cutting physical

boiling chem

Answer 2

ANSWER:

PHYSICAL CHANGE:

cutting of trees,

melting of butter in a pan,

dissolving common salt in water,

making a fruit salad with raw fruits ,

CHEMICAL CHANGES:

rusting of almirah,

passing of electric current,through water and the breaking down into hydrogen and oxygen gases,

burning of paper and wood ,