Advantages using unleaded petrol for cars?

Answer 1

in petrol we have 2 types.they are

1.leaded petrol

2.unleaded petrol

in leaded petrol we have lead compounds so we call it as leaded petrol.

in unleaded petrol we do not have lead compounds.

the use or advantage of unleaded petrol is it does not emit harmful gases in to the environment.

but leaded petrol emits harmful gases.

cracking process takes place in unleaded petrol.

cracking means it is a process of converting harmful gases into harmless gases.

but this cracking process cannot be done in leaded petrol bcoz lead compounds decomposes the catylsts used in cracking process