Chemical Process
Viscose rayon

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

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Chemical Process
Presence of sodium tripolyphosphate (an additive) in synthetic detergent

Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)
None of these
Does not allow redeposition of dirt on the cleaned surface
Inhibits its corrosive effects

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