Chemical Process
Alcohol is produced by the

Hydrolysis of an ether
Oxidation of an aldehyde
Esterification of a fat
None of these

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Chemical Process
Liquefaction of gases can not be done by

Merely compressing it beyond critical pressure
Adiabatic expansion through a throttle valve (Joule-Thomson expansion)
Adiabatic expansion against a piston or in a turbine
Exchange of heat with colder stream

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