Chemical Process MCQs

Poor oxidation stability and high gum forming tendency

Greater tendency of decomposition at elevated temperature

Hydrolysis tendency in presence of water

All of the above

Iron-steam reaction

Electrolysis of water

Steam reforming of naphtha

Its cryogenic separation from coke oven gas

1-Feb

15 – 20

50 – 60

80 – 85

Sand to cement ratio

Water to cement ratio

Ambient temperature fluctuation

Drying period

Exchange of heat with colder stream

Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

Merely compressing it beyond critical pressure

Adiabatic expansion against a piston or in a turbine

Sucrose

Glucose

Starch

Maltose

Fat

Naphthalene

Cumene

Sucrose

Bakelite

Teflon

Celluloid

Decron

Make it corrosion resistant

Make glossy surface

Give elasticity & prevent cracking of the film

Increase atmospheric oxidation

Called ester value

Always negative

Constant for all fatty oils

None of these