A. Absorption of SO3 in 98% H2SO4
B. C + H2O = CO + H2
C. Thermal dissociation of iron pyrites
D. Both B. and C.
Which of the following is an endothermic reaction ? Read More »
Chemical Process A. Is an exothermic reaction
B. Increases their melting point
C. Is done in presence of nickel catalyst
D. All A , B. and C.
Hydrogenation of edible vegetable oils_________________? Read More »
Chemical Process A. The number of grams of iodine taken up by 100 gm of oil or fat
B. A measure of its unsaturation
C. Helpful in findings its adulteration & its suitability for making soap
D. Independent of the type of oil, whether it is drying or non-drying
Pick out the wrong statement. Iodine value of an oil or fat is________________? Read More »
Chemical Process A. Ostwald’s
B. Bosch
C. Solvay
D. Haber’s
A. Pain relievers
B. Antibiotics
C. Used in the treatment of T.B.
D. Used in the treatment of typhoid
Analgesic drugs are__________________? Read More »
Chemical Process A. Polyurethane
B. Phenol formaldehyde
C. Polychlorophrene
D. Styrene-butadiene rubber
Neoprene is the trade name of___________________? Read More »
Chemical Process A. 10
B. 20
C. 50
D. 85
Cellulose percentage in bamboo fibre is about_________________? Read More »
Chemical Process A. Merely compression of gas beyond its critical pressure
B. Joule-Thomson expansion cooling
C. Heat exchange with colder stream
D. Adiabatic expansion against a piston or in a turbine
Claude process of gas liquefaction employs___________________? Read More »
Chemical Process A. Coking coals cannot be used
B. Low carbon conversion efficiency is achieved
C. Entrainment of solids is higher
D. Large quantity of coal can be processed
In the Lurgi coal gasifier_________________? Read More »
Chemical Process A. CaO, SiO2, Al2O3
B. MgO, SiO2, K2O
C. Al2O3, MgO, Fe2O3
D. CaO, MgO, K2O
Cement mainly contains_________________? Read More »
Chemical Process