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Assertion (A): Cotton is held under tension during mercerisation.
Reason (R): Without tension the fibre shrinks and the lustre does not develop.

  • A.A is true but R is false
  • B.A is false but R is true
  • C.Both A and R are true, and R is the correct explanation of A
  • D.Both A and R are true, but R is not the correct explanation of A

Answer: C

Both are true and the reason gives the mechanism: slack mercerisation is a real process, used where bulk and stretch are wanted rather than lustre, so tension is what distinguishes the two outcomes. Slack goods are made deliberately in this way.

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