Which monomer is common for both Buna–N and Buna–S?Select an answerAStyreneBAcrylonitrileCButadieneDEthylene glycol

To determine the common monomer for both Buna-N and Buna-S, we need to analyze the components of each type of synthetic rubber:

1. Buna-N (Nitrile Rubber): This rubber is primarily made from the polymerization of butadiene and acrylonitrile. Thus, butadiene is a fundamental monomer in Buna-N.

2. Buna-S (Styrene-Butadiene Rubber): This rubber is produced from the copolymerization of styrene and butadiene. Here too, butadiene is a crucial monomer.

Since butadiene is present in both Buna-N and Buna-S, we can conclude that:

Final Answer

C. Butadiene is the common monomer for both Buna-N and Buna-S.