Chemical Process
Ethyl alcohol cannot be produced

None of these
By esterification and hydroloysis of ethylene
From waste sulphite substrate of paper mills
From molasses

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Chemical Process
During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as

None of these
Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)
It decomposes on further increasing the temperature
It is very corrosive at elevated temperature

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Chemical Process
The chamber process is

None of these
A batch process for directly producing high strength (98 to 100%) H₂SO₄
Non-catalytic and operates only on pyrites
Preferred over contact process for producing 98 to 100% H₂SO₄ and various oleums

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