A. Lime
B. Sulphuric acid
C. Chlorine
D. Sodium bisulphite
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Related Mcqs:
- Most commonly used rubber vulcanising agent is___________________?
A. Sulphur
B. Bromine
C. Platinum
D. Alumina - The biochemical treatment applied to sewage effluents is a process of__________________?
A. Dehydration
B. Reduction
C. Oxidation
D. Polymerisation - A substance produced by a living organism and capable of anti-microbial activity is called a/an < ____________________?
strong>A. Antibiotic
B. Antiseptic
C. Disinfectant
D. None of these - Commonly used glass is known as the _______________ glass?
A. Flint
B. Hard
C. Pyrex
D. Soda - Most widely and commonly used coagulant for the removal of suspended impurities in water is __________________?
A. Bleaching powder
B. Slaked lime
C. Alum
D. Copper sulphate - Common salt is generally not produced commonly by ________________ method from brine ?
A. Freeze drying
B. Electrolytic
C. Solar evaporation
D. Vacuum evaporation - In the Solvay process, the product from the calciner is___________________?
A. Light soda ash
B. Dense soda ash
C. Sodium bicarbonate
D. Dehydrated soda ash - Teflon is___________________?
A. Phenol formaldehyde
B. An inorganic polymer
C. Poly tetra-fluoro-ethylene (P.T.F.E.)
D. A monomer - Main product in calcium carbide-water reaction is___________________?
A. Ca(OH)2
B. C2H2
C. CO2
D. CaCO3 - Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is___________________?
A. 0.14
B. 0.34
C. 0.94
D. 1.4
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