Chemical Process
Viscose rayon

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

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Chemical Process
Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its

Greater tendency of decomposition at elevated temperature
Poor oxidation stability and high gum forming tendency
All of these
Hydrolysis tendency in presence of water

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