Chemical Process
Cooking liquor in case of sulphite process is

None of these
Magnesium sulphate and magnessium bicarbonate
Sodium sulphite and sodium bisulphite
Magnesium sulphite and free SO₂ in acid medium

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

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

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