Question

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 in water convert from liquid into solid .
3. the product of chemical change on keeping a polished iron nail exposed to atmosphere .
4. a form of energy required for chemical change .
5. the gaseous product of chemical change which take place during respiration in Living Organism ​

Answer 1

1.the product obtained during a physical change when water converts from liquid into a solid .

the product of chemical change on keeping a polished iron nail exposed to the atmosphere.