Chemical Process
Reaction of calcium carbide with water produces a gas, which is used

For metal cutting/welding
As an illuminant
Neither A nor B
Both A & B

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

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)
It decomposes on further increasing the temperature
None of these

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