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Consider the following statements about batch operation.
1. It offers flexibility to make several products in one vessel.
2. Labour cost per kilogram is higher than in continuous operation.
3. Its product is more uniform than that of a continuous reactor.

  • A.3 only
  • B.1 only
  • C.All of them
  • D.1 and 2 only

Answer: D

The first two are correct. The third is the wrong way round, since each batch may differ slightly from the last while a continuous reactor at steady state produces a constant output. Uniformity is where continuous operation wins.

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