Synthetic Materials


What are the soaps?

A. Salts of silicates
B. Mixture of glycerol and alcohols
C. Sodium or potassium salts of heavier fatty acids
D. Esters of heavy fatty acids


The major ingredient of leather is

A. collagen
B. carbohydrate
C. polymer
D. nucleic acid


Optic fibres are mainly used for which of the following?

A. Musical instruments
B. Food industry
C. Weaving
D. Communication


Rayon is chemically

A. cellulose
B. pectin
C. glucose
D. amylase


Wood is the main raw material for the manufacture of

A. paint
B. paper
C. ink
D. gun powder