Chemical Process

A. Avoid mechanical weakening of fibre
B. Remove lignin by way of crystallisation
C. Increase the cellulose content
D. None of these

A. Ca(OH)2
B. C2H2
C. CO2
D. CaCO3

A. 3
B. 12
C. 22
D. 0.3

A. Simply boiling
B. Adding alum
C. Passing it through cation & anion exchangers
D. All (A), B. and (C)

A. Unsaturated fat
B. Starting material for the production of iodine
C. By-product of chlor-alkali industry
D. None of these

A. Average degree of polymerisation of the polymer is 1966
B. Number of carbon atoms between two nitrogen atoms are 6
C. Number of nitrogen atoms between two carbon atoms are 6
D. Polymer was first synthesised in 1966

A. Coke
B. Ammonia
C. Tar
D. Phenol

A. Soap from lye
B. Glycerine from lye
C. The metallic soap
D. The unsaponified fat from soap

A. 2-8
B. 18-23
C. 27-32
D. 1-4

A. Fatty acid
B. Fatty alcohols
C. Tallow
D. Detergents