Tetraethyl lead is used as
A). Pain Killer
B). Fire Extinguisher
C). Mosquito Repellent
D). Petrol Additive
1. Sea weeds are important source of
3. The major component in the LPG is
5. Among the following the hardest metal is
6. Sea water can be purified by the process of
7. For a body moving with no uniform velocity and uniform acceleration
8. Endothelium of the inner surface of blood vessels in vertebrates is