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.Management Sciences
Category: Chemical Process
In the Solvay process, the product from the calciner is___________________?
0
A. Light soda ash
B. Dense soda ash
C. Sodium bicarbonate
D. Dehydrated soda ash
Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of ____________________?
A. Nitric acid
B. Sulphuric acid
C. Ammonium sulphate
D. Hydrochloric acid
Permanent hardness of water is due to the presence of calcium & magnesium __________________?
A. Bi-carbonates
B. Sulphates & chlorides
C. Carbonate
D. None of these
Hydrogenation of oil takes place in a/an ____________________ reactor ?
A. Autothermal
B. Trickle bed
C. Plug flow
D. None of these
Which of the following processes is absent in glass manufacturing process ?
A. Sintering
B. Annealing
C. Shaping or forming
D. Melting
Extraction of _________________ employs an electrolytic process ?
A. Aluminium
B. Silver
C. Copper
D. All A, B. and C
Low temperature carbonisation of coal takes place at _______________ °C ?
A. 300
B. 1100
C. 700
D. 900
Calcareous & argillaceous materials are used in the manufacture of ___________________?
A. Lead
B. Cement
C. Carbon disulphide
D. None of these
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