Silicon carbide is a/an_______________?
Silicon carbide is a/an_______________?
A. Adhesive
B. Abrasive
C. Type of glass
D. Brittle material
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In 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.
Salt is the basic raw material for the manufacture of____________________?
Salt is the basic raw material for the manufacture of____________________?A. Cement
B. Glass
C. Potteries
D. Caustic sodaConsider the production of ammonia from methene and air as raw materials. The catalyst used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis.
Question: Consider the production of ammonia from methene and air as raw materials. The catalyst used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis.
[A].i – Ni/Al2O3; ii – Cu – ZnO/Al2O3 [B].
i – Fe/Al2O3; ii – Cu – ZnO/Al2O3 [C].
i – Ni/Al2O3; ii – Fe/Al2O3 [D].
i – Fe/Al2O3; ii – Ni/Al2O3 Answer: Option C
Explanation:
No answer description available for this question.
Sudden temperature fluctuation does not affect pyrex glass, because of its __________________?
Sudden temperature fluctuation does not affect pyrex glass, because of its __________________?A. Low co-efficient of expansion
B. High co-efficient of expansion
C. High melting point
D. Both B. and (C)A mixture of chlorine & sodium bromide acts as a/an_________________?
A mixture of chlorine & sodium bromide acts as a/an_________________?A. Insecticides
B. Analgesic drug
C. Fire retardant
D. Hydrogenation catalystExtraction of _________________ employs an electrolytic process ?
Extraction of _________________ employs an electrolytic process ?A. Aluminium
B. Silver
C. Copper
D. All A, B. and C