Chemical Process
The chamber process is

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

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Chemical Process
Wax is a

Mixture of glycerides
Liquid at room temperature
Mixture of glycerides of fatty acids
Mixture of esters of polyhydric alcohols excepting glycerine

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Chemical Process
Viscose rayon

Cannot yield textile grade fibre
None of these
Utilises H₂SO₄, NaOH and CS₂ during its manufacture
Cannot be made from sulphite pulp

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