Diamond shines due to its
High density
High refractive index
High melting point
High value
In the combined state, carbon exist as
Minerals
Diamond
Graphite
Coal
Gasoline refers to
Crude oil
Petrol
Diesel
Kerosene
Which is an excellent fuel?
Wood
Wood charcoal
Animal charcoal
Sugar charcoal
A chemical mixed with LPG to detect its leakage is called
Ethyl mercaptan
Methyl mercaptan
Methyl isocyanide
Ethyl chloride
Which substance is used as a reducing agent in metallurgy?
CO2
Lampblack
Coke
Fullerene
The purest form of carbon is
No such form exists
Gun powder is a mixture of
Sodium nitrate , Sulphur and Carbon
Potassium nitrate , Oxygen and Carbon
Sodium nitrate , Oxygen and Carbon
Potassium nitrate , Carbon , Sulphur
Which turns milky when CO2 is passed through it?
Ca(OH)2
LiOH
KOH
NaOH
