Related Questions

The amount of benzene present in pure benzol is about __________ percent.
A 30
B 50
C 70
D 90
Benzol is used
A As a motor fuel blend
B For producing benzene, tolune & xylene by its distillation
C Both A & B
D Neither A nor B
Light oil whose major component is benzol, is obtained by the distillation of crude tar in the temperature range of __________ °C.
A 80-170
B 200-300
C 250-270
D 280-300
For storing water and acid free benzol, use a __________ vessel.
A Steel
B Karbate
C Stainless steel
D None of these
Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?
A CO2
B N2
C O2
D CO
Main constituents of biogas are
A Methane and carbon monoxide
B Butane and carbon monoxide
C Methane and carbon dioxide
D Ethylene and carbon dioxide
The main mineral constituents of the continental mass water ________ and alumina.
A Iron Oxide
B Silica
C Water
D Oxygen
Main constituents of portland cement are calcium aluminate and
A Gypsum
B Silicates
C Sodium silicate
D Carbonates
Main constituents of cotton fiber is
A Lignin
B Cellulose
C Starch
D Gelatine
Main constituents of natural rubber is
A Polystyrene
B Polyisoprene
C Polybutadiene
D Polychloroprene

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