Which one of the following is commonly used for pulp bleaching in the paper industry?
A. Mild sulphuric acid
B. Glucose isomerase
C. Hydrogen peroxide
D. Iodine and water
Answer: Option C
Solution(By Examveda Team)
Bleaching of wood pulp is the chemical processing carried out to decrease the color of the pulp, so that it becomes whiter.Alkaline hydrogen peroxide is the most commonly used bleaching agent for mechanical pulp. It selectively oxidizes non-aromatic conjugated groups responsible for absorbing visible light. The decomposition of hydrogen peroxide is catalyzed by transition metals.Related Questions on Chemistry
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A. Greenhouse effect
B. Fire in coal mines
C. Dry farming
D. Monsoon
E. Trade winds
The nucleus of an atom consists of
A. electrons and neutrons
B. electrons and protons
C. protons and neutrons
D. All of the above
The number of moles of solute present in 1 kg of a solvent is called its
A. molality
B. molarity
C. normality
D. formality
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