Question

Q.5 Name the following.
1. The salt obtained when a chemical change takes place on addition of iron to dilute
sulphuric acid
2. The product obtained during a physical change when water converts from a liquid into a solid.
3. The product of the chemical change on keeping a polished iron nail exposed to the atmosphere.
4. A form of energy required for a chemical change.
5. The gaseous product of the chemical change which takes place during respiration in
living organisms.
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Answer 1

Answer:

1.Iron sulpate

2.Ice

3.Rusting of iron (Formation of Iron oxide)

4.Enthalpy

5.Carbon dioxide

Answer 2

Answer:

1) iron sulphate

2) ice

3) rust

4) heat energy

5) carbon dioxide