Chemical Process MCQs

Question 1

Fat dispersed in water is exemplified by

Accepted Answer

Butter

Answer

Colloids

Answer

Gel

Answer

Emulsion

Question 2

Shaving soaps are

Accepted Answer

Soft potassium soaps (potassium salt of fatty acid) with free stearic acid to give lather a lasting property

Answer

Metalic soaps compounded with frothing agents

Answer

High free alkali soaps having excess of cane sugar and alcohol

Answer

None of these

Question 3

Silicon carbide is a/an

Accepted Answer

Abrasive

Answer

Adhesive

Answer

Type of glass

Answer

Brittle material

Question 4

Silicone is a/an

Accepted Answer

Inorganic polymer

Answer

Thermoplastic

Answer

Monomer

Answer

None of these

Question 5

Pig iron is produced by blast furnaces in India using mostly the iron ore named

Accepted Answer

Hematite

Answer

Magnetite

Answer

Siderite

Answer

Chalcopyrite

Question 6

In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇋ 2SO3), the reverse reaction becomes appreciable at a temperature of 550°C. The percentage equilibrium conversion of SO2 to SO3 can be increased by

Accepted Answer

Removing some quantity of SO3 during intermediate stage

Answer

Increasing the oxygen concentration

Answer

Putting more quantity of V2O5 catalyst in the converter

Answer

Maintaining low temperature & pressure in the converter

Question 7

Which of the following is used as a binding material in soap to improve soap texture?

Accepted Answer

Borax

Answer

Rosin

Answer

Benzyl acetate

Answer

Sodium carbonate

Question 8

Soaps remove dirt by

Accepted Answer

None of these

Answer

Increasing the surface tension

Answer

Decreasing wettability

Answer

Supplying hydrophyllic group

Question 9

Which allotrope of sulphur is insoluble in carbon disulphide?

Accepted Answer

Plastic sulphur

Answer

Rhombic sulphur

Answer

Monoclinic sulphur

Answer

Milk of sulphur