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Neutralisation after mercerising is carried out with

  • A.more caustic soda liquor
  • B.hydrogen peroxide solution
  • C.a cationic softener bath
  • D.dilute acid, then rinsing

Answer: D

Residual alkali would interfere with dyeing and could damage the fabric in storage. The rinse must bring the fabric genuinely to neutral rather than merely close to it. Dried fabric pH is checked as a matter of course.

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