Which of the following can be classified into physical and chemical change? Also mention whether it's a reversible or irreversible change

1. Melting of chocolate

2. Rusting of iron

3. Baking of pizza

4. Cutting of vegetables

5. Digestion of food
   

Q.

Classify the following processes into physical or chemical changes: (i) Beating of aluminium metal to make aluminium foil. (ii) Digestion of food. (iii) Cutting of a log of wood into pieces. (iv) Rusting of iron.

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Digestion of food is a Q irreversible change. ( )
2. Rusting of iron is a reversible change. ( )
3. Melting of wax is a reversible change. ( )
4. Curding of milk is an irreversible change. ( )
5. Melting of ice cream is a reversible change. ( )

Q. Group the following into physical change and chemical change.

Q.

Classify the following as physical or chemical changes:

(i) Cooking of food (ii) Boiling of water

(iii) Cutting of trees (iv) Dissolving salt in water

(v) Digestion of food (vi) Melting of ice

Q. Match the columns: