Discussion
Assertion (A): Hypochlorite bleaching is followed by treatment with a reducing agent.
Reason (R): Chlorine retained in the fabric continues to attack the cellulose after processing.
Answer: D
Both are true and the reason gives the necessity: the damage develops slowly and shows up as tendering in storage, which makes it a particularly awkward fault to trace back to its cause. Bisulphite is the usual antichlor.
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