Chemical Process Archives - Page 57 of 98 -

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively ?

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively ?

A. V2O5 & Cr2O3.
B. Oxides of nitrogen & Cr2O3
C. V2O5 on a porous carrier & oxides of nitrogen
D. Oxides of nitrogen & V2O5 on a porous carrier

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively ? Read More »

Chemical Process

Detergent is produced by the sulphonation of dodecyl benzene, which is an ________________ reaction?

Chemical Process / admin

Detergent is produced by the sulphonation of dodecyl benzene, which is an ________________ reaction?

A. Endothermic
B. Exothermic
C. Irreversible
D. Both B. and C.

Detergent is produced by the sulphonation of dodecyl benzene, which is an ________________ reaction? Read More »

Chemical Process

Isopropyl benzene produced by alkylation of benzene with propylene is known as _________________?

Chemical Process / admin

Isopropyl benzene produced by alkylation of benzene with propylene is known as _________________?

A. Neoprene
B. Cumene
C. Gelatin
D. Mercaptans

Isopropyl benzene produced by alkylation of benzene with propylene is known as _________________? Read More »

Chemical Process

Dichloro diphenyl ________________ is the full form of DDT (an insecticide) ?

Chemical Process / admin

Dichloro diphenyl ________________ is the full form of DDT (an insecticide) ?

A. Tetrachloroethane
B. Trichloroethane
C. Tetrachloromethane
D. Trichloromethane

Dichloro diphenyl ________________ is the full form of DDT (an insecticide) ? Read More »

Chemical Process

Calcareous & argillaceous materials are used in the manufacture of ___________________?

Chemical Process / admin

Calcareous & argillaceous materials are used in the manufacture of ___________________?

A. Lead
B. Cement
C. Carbon disulphide
D. None of these

Calcareous & argillaceous materials are used in the manufacture of ___________________? Read More »

Chemical Process

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of __________________?

Chemical Process / admin

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of __________________?

A. 4 kgf/cm2 & 500°C
B. 10 kgf/cm2 & 1000°C
C. 40 kg/cm2 & 200°C
D. 100 kgf/cm2 & 500°C

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of __________________? Read More »

Chemical Process

Fats as compared to oils have ___________________?

Chemical Process / admin

Fats as compared to oils have ___________________?

A. More unsaturated glycerides of fatty acids
B. Less unsaturated glycerides of fatty acids
C. Much higher reactivity to oxygen
D. Lower melting point

Fats as compared to oils have ___________________? Read More »

Chemical Process

Oils are partially hydrogenated (not fully) to manufacture Vanaspati , because fully saturated solidified oils ?

Chemical Process / admin

Oils are partially hydrogenated (not fully) to manufacture Vanaspati , because fully saturated solidified oils ?

A. Cause cholesterol build up and blood clotting
B. Are prone to rancid oxidation
C. Always contain some amount of nickel (as their complete removal is very difficult)
D. Have affinity to retain harmful sulphur compounds

Oils are partially hydrogenated (not fully) to manufacture Vanaspati , because fully saturated solidified oils ? Read More »

Chemical Process