Which of the following is a polymer of Hexamethylene diamine and adipic acid ?

A. Perspex
B. Nylon-66
C. Polystyrene
D. Bakelite

A. Methyl methacrylate
B. DMT
C. Butadiene
D. Tetrafluoroethylene

A. poly-methyl-methacrylate
B. Polystyrene
C. Unsaturated polyester
D. Polypropylene

A. Polyurethane
B. SBR
C. Teflon
D. Bakelite

A. Polyisoprene
B. Neoprene
C. Nitrile-butadiene
D. None of these

A. Rosin
B. Shellac
C. Amber
D. Copal