Apolysaccharide of unknown structure was isolated, subjected to exhaustive methylation (which will modify free hydroxyls), and hydrolyzed (also see chap 8 #6). analysis of the products revealed the following three methylated sugars in the ratio 20: 1: 1. the sugars were 2,3,4-tri-o-methyl-d-glucose, 2,4-di-o-methyl-d-glucose, and 2,3,4,6-tetra-o-methyl-dglucose. what is the structure of the polysaccharide?

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)