Poly Tetrafluoroethylene (P.T.F.E.) is known as___________________?
A. Bakelite
B. Teflon
C. Celluloid
D. Dacron
Chemical Process
Ultimate analysis of coal determines its _______________________ content?
Ultimate analysis of coal determines its _______________________ content?
A. Carbon, hydrogen, nitrogen & sulphur
B. Carbon, ash, sulphur & nitrogen
C. Carbon, sulphur, volatile matter & ash
D. Carbon, volatile matter, ash & moisture
Presence of sodium tripolyphosphate (an additive) in synthetic detergent___________________?
Presence of sodium tripolyphosphate (an additive) in synthetic detergent___________________?
A. Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)
B. Inhibits its corrosive effects
C. Does not allow redeposition of dirt on the cleaned surface
D. None of these
The process used for the manufacture of ethyl alcohol from molasses is_________________?
The process used for the manufacture of ethyl alcohol from molasses is_________________?
A. Distillation
B. Dehydration
C. Dehydrogenation
D. None of these
Adipic acid is an intermediate in the manufacture of________________?
Adipic acid is an intermediate in the manufacture of________________?
A. Perspex
B. Nylon-66
C. Polystyrene
D. Bakelite
Alcohol percentage in molasses may be around _____________________?
Alcohol percentage in molasses may be around _____________________?
A. 10
B. 40
C. 70
D. 85
Liquefaction of gases cannot be done by___________________?
Liquefaction of gases cannot be done by___________________?
A. Exchange of heat with colder stream
B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)
C. Merely compressing it beyond critical pressure
D. Adiabatic expansion against a piston or in a turbine
Cumene is the starting material for the production of________________?
Cumene is the starting material for the production of________________?
A. Benzoic acid
B. Phenol and acetone
C. Isoprene
D. Styrene
Margarine is a/an____________________?
Margarine is a/an____________________?
A. Fat
B. Explosive
C. Plasticiser
D. Rocket propellant
Bromine content in sea water may be around _________________ ppm?
Bromine content in sea water may be around _________________ ppm?
A. 70
B. 640
C. 1875
D. 2500