Question

example of physical change option 1.rusting of iron 2.melting of ice 3.burning of wood 4.formation of curd​

Answer 1

Answer:

Rusting of iron is a redox reaction and its a chemical change, apart from this all others are physical changes.

The rusting of Iron (Iron in contact with water forms the anode and in contact with air forms the cathode. At the anode iron is oxidised to Fe

2+

and at the cathode oxygen is reduced to water

Answer 2

example of physical change option

melting of ice