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Match each liquor in the kraft cycle with what it is.
List I
A. White liquor
B. Black liquor
C. Green liquor
D. Weak wash
List II
1. the dissolved smelt from the recovery boiler
2. the fresh cooking chemicals
3. water from washing the lime mud
4. spent liquor carrying dissolved lignin

  • A.A-2, B-4, C-3, D-1
  • B.A-3, B-1, C-4, D-2
  • C.A-2, B-4, C-1, D-3
  • D.A-4, B-2, C-1, D-3

Answer: C

The colours name the stages of one closed loop, and following it round is the whole of understanding the recovery island. Green liquor becomes white again in the causticiser. Each colour names one point in the closed loop.

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