In paper manufacturing, degumming of the raw material is done using

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Q: 8 (CDS-II/2016)
In paper manufacturing, degumming of the raw material is done using

question_subject: 

Science

question_exam: 

CDS-II

stats: 

0,21,41,13,30,10,9

keywords: 

{'paper manufacturing': [0, 0, 0, 1], 'raw material': [2, 1, 2, 8], 'sulphuric acid': [1, 1, 0, 1], 'bleaching powder': [1, 0, 0, 2], 'caustic soda': [0, 0, 1, 1], 'nitric acid': [0, 0, 0, 2]}

The correct option for degumming of raw material in paper manufacturing is option 3: caustic soda.

Caustic soda, also known as sodium hydroxide, is commonly used in the paper industry for various purposes, including the degumming process. Degumming refers to the removal of gums, waxes, and other impurities from the raw materials used in paper production, such as wood pulp or other plant fibers.

Sulphuric acid (option 1) is not typically used for degumming in the paper industry. It is more commonly used in processes such as bleaching and pH adjustment.

Bleaching powder (option 2) is primarily used for bleaching purposes in paper manufacturing, rather than degumming.

Nitric acid (option 4) also has various uses in the paper industry, but not specifically for degumming. It is commonly used in processes such as nitration and oxidation.

Therefore, the correct answer is option 3: caustic soda, as it is commonly used for degumming in the paper manufacturing process.