Kevlar

Q. Which material is used in bullet proof vests?

1. Kevlar
2. Bakelite
3. Melamine resin
4. PMMA

Q. Kevlar is made from which of the following materials?

1. 1, 4 phenylene diamine
2. Hexamethylene diamine
3. Terephthaloyl chloride
4. phenoyl dichloride

Q. Which of the following represents the correct chemical structure of Kevlar?

1. 
2. 
3. 
4. 

Q. Which of the following represents the correct chemical structure of Kevlar?

1. 
2. 
3. 
4.