AIPMT PRELIMS 2005 Botany Paper Manufacturing MCQ Question
An important step in the manufacture of pulp for paper industry from the woody tissues of plants is the:
preparation of pure cellulose by removing lignin
removal of oils present in the wood by treatment with suitable chemicals
removal of water from the wood by prolonged heating at approximately 50°C
treatment of wood with chemical that breakdown cellulose
Correct Answer
Detailed Explanation
The removal of lignin to obtain pure cellulose is a crucial step in the paper manufacturing process, as lignin can cause discoloration and degradation of paper.
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