Starch is a polymer of $\beta$-D-glucose

Amylose is a components of starch

Proteins are biopolymers of only one type of amino acids

Lactose is a disaccharide of $\alpha-D$ - glucose and $\beta$-D galactose

Aspartame - Food preservative

Butylated hydroxy toluene - Antioxidant

Novestrol - Antifertility drug

Bithionol - Antiseptic

Wurtz reaction

Fittig reaction

Wurtz-Fittig reaction

Friedel-Crafts reaction

4-chlorobut - 1-ene

1-chlorobut -2-ene

3-chloro - 2 - methyl but-1 - ene

4 - chloropent - 2 - ene