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An important step in the manufacture of pulp for paper industry from the woody tissues of plants is the:

  1. A
    Preparation of pure cellulose by removing lignin
  2. B
    Removal of oils present in the wood by treatment with suitable chemicals
  3. C
    Removal of water from the wood by prolonged heating at approximately 50°C
  4. D
    Treatment of wood with chemical that breakdown cellulose

Solution & Step-by-step Explanation

The preparation of pure cellulose by removing lignin is an important step in the manufacture of pulp for the paper industry from the woody tissues of plants. Lignin is a complex organic compound that is present in the cell walls of woody plants, and it must be removed in order to produce high-quality pulp. So, the correct answer is option A. Notice that the other options are not correct. The removal of oils present in the wood is not a necessary step in the manufacture of pulp, the removal of water from the wood is not a necessary step, and the treatment of wood with chemicals that break down cellulose is not a necessary step.

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An important step in the manufacture of pulp for paper industry from the woody tissues of plants is the:
A
Preparation of pure cellulose by removing lignin
B
Removal of oils present in the wood by treatment with suitable chemicals
C
Removal of water from the wood by prolonged heating at approximately 50°C
D
Treatment of wood with chemical that breakdown cellulose

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