Chemical Process MCQs

Coking coals cannot be used

Low carbon conversion efficiency is achieved

Entrainment of solids is higher

Large quantity of coal can be processed

Sand

Bauxite

Quicklime

Calcite

SO₃

Cl₂

NH₃

SO₂

Does not affect the lather formation by soap

Is not unfit for drinking purpose

Pollutes the water stream

All of the above

Bromine

Magnesium compounds

Potassium compounds

Sodium sulphate

Evaporation and burning the concentrate followed by causticisation of products

Multi-effect evaporation only

Selective liquid extraction

Extractive distillation

Removal of fatty and albuminous substance from it

Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics

Inhibiting the growth of micro-organisms without killing them

None of these

Insecticides

Analgesic drug

Fire retardant

Hydrogenation catalyst

Is an exothermic reaction

Increases their melting point

Is done in presence of nickel catalyst

All of the above

25°C, 2 atm

50°C, l0 atm

30°C, 200 mm Hg (absolute)

90°C, 45 atm