Machine-translated by Google. Questions are authored in English.
Top

Discussion

Assertion (A): A single fluid solid reaction may change its controlling resistance as it proceeds.
Reason (R): The ash layer thickens with conversion while the reaction area shrinks.

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

Answer: A

Both are true and the reason gives the mechanism: reaction often controls at the start and ash diffusion by the end, which is precisely why the simple plots curve over the full range. Control shifts as the reaction proceeds.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.