A. Electrical insulator
B. Allotrope of carbon
C. Moderator used in nuclear reactor
D. Both B. and C.
Related Mcqs:
- What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell ?
A. Cl2 & Na
B. Cl2 & H2
C. O2 & H2
D. Cl2, H2 & NaOH solution - Which of the following coals has the highest calorific value ?
A. Lignite
B. Sub-bituminous
C. Anthracite
D. Peat - Phthalic anhydride is used____________________?
A. In making PVC
B. As plasticisers
C. In insecticides manufacture
D. For making nylon-6 - ________________ acid is an unsaturated fatty acid ?
A. Palmitic
B. Oleic
C. Stearic
D. Oxalic - ___________________ glass is used for the manufacture of optical glass ?
A. Pyrex
B. Soda
C. Flint
D. Crooke’s - Main constituents of natural rubber is____________________?
A. Polystyrene
B. Polyisoprene
C. Polybutadiene
D. Polychlorophrene - Which of the following is not a pyrite ore ?
A. Celestite
B. Galena
C. Gypsum
D. Siderite - Claude process of gas liquefaction employs___________________?
A. Merely compression of gas beyond its critical pressure
B. Joule-Thomson expansion cooling
C. Heat exchange with colder stream
D. Adiabatic expansion against a piston or in a turbine - Alcohol content in freshly prepared natural and fortified wine may be respectively around ______________ percent ?
A. 7-14 and 14-30
B. 7-14 and 40-50
C. 14 – 30 and 40-50
D. 10 – 20 and 40 – 50 - Nitrogen is an essential component of ____________________?
A. Mineral salts
B. Carbohydrates
C. Fats
D. Proteins