A. Gypsum
B. Feldspar
C. Galena
D. Bauxite
Alum is commercially produced from___________________? Read More »
Chemical Process A. Diamine and the ring
B. Dibasic acid and the ring
C. Diamine and the dibasic acid
D. None of these
A. 1 atm & 100°C
B. 5 atm & 275°C
C. 100 atm & 500°C
D. 50 atm & 1000°C
A. 80
B. 90
C. 98
D. 100
A. Dehydrogenation
B. Oxidation
C. Alkylation
D. Dehydration
Styrene is produced from ethyl benzene by the process of__________________? Read More »
Chemical Process A. Plaster of Paris
B. Salt cake
C. Nitre cake
D. Lime
Calcination of gypsum produces__________________? Read More »
Chemical Process A. 20% oleum
B. 65% oleum
C. 78% H2SO4
D. 98% H2SO4
Which is the most efficient absorbent for SO3 out of the following ? Read More »
Chemical Process A. Avoid its decomposition
B. Prevent sulphonation of the monochlorobenzene by the acid catalyst
C. Achieve non-hygroscopic property
D. None of these
A. Film forming materials
B. Plasticisers
C. Diluents
D. Solvents
A. SO2
B. H2SO3
C. SO3
D. H2SO4
10% oleum comprises of 10% free_________________? Read More »
Chemical Process