Alum is commercially produced from___________________?
Alum is commercially produced from___________________?
A. Gypsum
B. Feldspar
C. Galena
D. Bauxite
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The product obtained on mixing calcium oxide with water is called __________________?
The product obtained on mixing calcium oxide with water is called __________________?A. Quicklime
B. Slaked lime
C. Milk of lime
D. None of theseBrackish water which contains mostly dissolved salt, can be purified by the __________ process.
Question: Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
[A].reverse osmosis [B].
sand filter [C].
lime soda [D].
permutit Answer: Option A
Explanation:
No answer description available for this question.
Bakelite is chemically known as_____________________?
Bakelite is chemically known as_____________________?A. Polyvinyl chloride (PVC)
B. Polybutadiene
C. Phenol formaldehyde
D. PolyurethaneIn contact process, SO3 is absorbed in 97% H2SO4 and not in water, because
Question: In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because
[A].SO3 gas is sparingly soluble in water. [B].
water forms an acid mist, which is difficult to absorb. [C].
the purity of acid is affected. [D].
scale formation in the absorber is to be avoided. Answer: Option B
Explanation:
No answer description available for this question.
Massecuite is ___________________?
Massecuite is ___________________?A. Used for paper making
B. Used as a cattle feed
C. Highly acidic in nature
D. None of theseLiquefaction 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