In Kraft process of paper manufacture, white cooking liquor consists of caustic soda________________?
Correct answer: A. Sodium sulphide & sodium carbonate
- A. Sodium sulphide & sodium carbonate
- B. Sodium sulphite & sodium carbonate
- C. Sodium sulphite & sodium sulphide
- D. None of these
Explanation
Kraft white liquor is principally sodium hydroxide and sodium sulfide, with sodium carbonate commonly present as a minor component. Hence the option containing caustic soda, sodium sulfide, and sodium carbonate is the intended choice.
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