For bleaching paper pulp, which of the following materials is used?

Options :
  1. Chlorine
  2. Caustic Soda
  3. Sodium hypochlorite
  4. Lime


Answer and Explanation :-

Answer: Option 3

Explanation:

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I see it all perfectly there are two possible situations - one can either do this or that. My honest opinion and my friendly advice is this: do it or do not do it - you will regret both.
-Søren Kierkegaard Either/Or: A Fragment of Life