The main product of high temperature carbonisation of coal is_____________________?
(A) Coke
(B) Ammonia
(C) Tar
(D) Phenol
Salt is added in the kettle during soap manufacture to separate ___________________?
(A) Soap from lye
(B) Glycerine from lye
(C) The metallic soap
(D) The unsaponified fat from soap
Hydrophilic group of a soap or detergent solution is____________________?
(A) Water hating
(B) Soil loving
(C) Water loving
(D) None of these
The chamber process is______________________?
(A) Preferred over contact process for producing 98 to 100% H2SO4 and various oleums
(B) Non-catalytic and operates only on pyrites
(C) A batch process for directly producing high strength (98 to 100%) H2SO4
(D) None of these
Sand and ______________ is fused at 1300°C, to produce sodium silicate ?
(A) Limestone
(B) Soda ash
(C) Coke
(D) Sodium sulphate
The main use of HCl is in the___________________?
(A) Drilling of petroleum wells and pickling of steel sheets
(B) Manufacture of cationic detergent
(C) Treatment of spent fuel of nuclear reactor
(D) None of these
Percentage of glycerine present in the spent lye obtained during soap manufacture is about________________?
(A) 0.5
(B) 5
(C) 20
(D) 35
Which of the following is an unsaturated fatty acid ?
(A) Lauric acid
(B) Palmitic acid
(C) Stearic acid
(D) Oleic acid
Iron ore hematite is concentrated using ____________________?
(A) Electromagnetic separation mainly
(B) Gravity separation
(C) Froth floatation
(D) Roasting
The most widely used coagulant for removing suspended impurities from water is__________________?
(A) Bleaching powder
(B) Chlorine
(C) Calcium sulphate
(D) Alum