Lead pencil contains
Lead chloride
Carbon
Graphite
Diamond
Which of the following is a green house gas?
Co2
CH4
H2
N2
Which is used in making type writer ribbons?
Coke
Charcoal
Black carbon
Carbon black
Name the most abundant element in human body?
Hydrogen
Oxygen
Calcium
Amorphous form of Carbon is
None of these
A chemical mixed with LPG to detect its leakage is called
Ethyl mercaptan
Methyl mercaptan
Methyl isocyanide
Ethyl chloride
The purest form of carbon is
No such form exists
Gasoline refers to
Crude oil
Petrol
Diesel
Kerosene
