Question

The main of difference between buna N and buna S is

(a) the former is homopolymer whereas the later is copolymer

(b) the former contains buta−1,3−diene but later does not.

(c) former contains acrylonitrile but later contains styrene.

(d) All of the above.​

Answer 1

Answer:

buna S: styrene + 1,3butadiene

bunaN: acrylonitrile + 1 ,3butadiene

as both contains two components,both are co polymers.

Thus the right answer is OPTION C

....hope it helps.....

Answer 2

Answer:

Buna-S

It is formed by copolymerisation of 1,3-Butadiene and Styrene. It is used for making automobiles tyres and rubber soles etc.

Buna-N

It is a copolymer of 1,3-Butadiene and acrylonitrile. It is resistant to the action of petrol, lubricating oil and organic solvents. It is used in making oil seals and tank lining etc