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Assertion (A): Mercerised and unmercerised cotton should not be dyed together in one bath.
Reason (R): The two take up dye at different rates and to different depths.

  • 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 consequence: the result is a two tone effect within a single batch, which is one of the classic causes of a shade complaint from a customer. Segregating the two lots is the only real answer.

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