CHEMICAL PROCESS QUIZ

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

Adjust the pH of the syrup

Improve the rate of crystallisation of sugar

Reduce the viscosity of the syrup

Remove the coloring matter from the syrup

TRUE ANSWER : ?
YOUR ANSWER : ?

Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

Precipitation

Dispersion

Wetting

Emulsification

TRUE ANSWER : ?
YOUR ANSWER : ?

Nickel is not used as a catalyst in the __________ reaction.

Shift conversion

Oil hydrogenation

Steaming reforming of naphtha

Ammonia cracking/dissociation

TRUE ANSWER : ?
YOUR ANSWER : ?

Nylon-6 as compared to Nylon-66 is having higher

Abrasion/resistance

Melting point

None of these

Hardness

TRUE ANSWER : ?
YOUR ANSWER : ?

Producer gas consists mainly of

CO, CO₂ N₂, H₂

C₂H₂, CO₂, H₂

CO, H₂

H₂, CH₄

TRUE ANSWER : ?
YOUR ANSWER : ?

Dichloro diphenyl __________ is the full form of DDT (an insecticide).

Tetrachloromethane

Trichloroethane

Tetrachloroethane

Trichloromethane

TRUE ANSWER : ?
YOUR ANSWER : ?

Digestion of wood-base materials (for manufacture of pulp) is done to

Remove lignin

Produce long fibres

Prevent deterioration on storage

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Analgesic drugs are

Used in the treatment of T.B.

Antibiotics

Used in the treatment of typhiod

Pain relievers

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is an ore of iron?

Hematite

Chalcopyrite

Bauxite

Galena

TRUE ANSWER : ?
YOUR ANSWER : ?

In sulphate pulp manufacture, the pressure and temperature in the digestor is

10 atm., 800 °C

10 atm., 170-180°C

1 atm., 170 - 180°C

L atm., 800°C

TRUE ANSWER : ?
YOUR ANSWER : ?

↑