Chemical Process
Which of the following, when pyrolysed, produces perchloro-ethylene?

Carbon tetrachloride
Ethylene dichloride
Chlorobenzene
Chlorinated paraffin

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Chemical Process
The chamber process is

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

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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
It decomposes on further increasing the temperature
It is very corrosive at elevated temperature
Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)

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