A. Evaporation followed by vacuum distillation
B. Liquid extraction technique
C. Extractive distillation technique
D. None of these
Related Mcqs:
- Percentage of glycerine present in the spent lye obtained during soap manufacture is about________________?
A. 0.5
B. 5
C. 20
D. 35 - Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and___________________?
A. Sulphuric acid
B. Phosphoric acid
C. Hydrochloric acid
D. Hydrofluoric acid - Yellow glycerine is made into white, using____________________?
A. Activated carbon
B. Diatomaceous earth
C. Bauxite
D. Bentonite - Glycerine is a by-product of the ________________ industry ?
A. Soap
B. Detergent
C. Oil hydrogenation
D. Paint - Glycerine is not used in the____________________?
A. Manufacture of explosive
B. Conditioning and humidification of tobacco
C. Manufacture of pharmaceuticals
D. None of these - Synthetic glycerine is produced from___________________?
A. Toluene
B. Phenol
C. Propylene
D. Naphthalene - Glycerine can be obtained from ________________ ?
A. Fat
B. Naphthalene
C. Cumene
D. Sucrose - In an integrated steel plant, NH3 present in coke oven gas is normally recovered as_________________?
A. (NH4)2SO4
B. NH4Cl
C. (NH4)2 NO3
D. Liquid NH3 - Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?
A. Chromium
B. Arsenic
C. Copper
D. Manganese - Caprolactam (a raw material for nylon-6 manufacture) is produced from ___________________?
A. Phenol
B. Naphthalene
C. Benzene
D. Pyridine
