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Assertion (A): Cement kilns are considered suitable for burning certain hazardous wastes.
Reason (R): The high temperature and long gas residence time destroy organic compounds thoroughly.

  • 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 technical basis: the conditions exceed those of a dedicated incinerator, and the alkaline charge neutralises acid gases, though the input still has to be controlled for chlorine and metals.

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