Question

what previously known chemical did nobel use to make dynamite?

a \tgunpowder

b \tnitroglycerine

c \ttoluene

d \tammonium nitrate

Explanation:

Alfred Nobel used nitroglycerine (which was previously known but unstable) and combined it with an absorbent like diatomaceous earth to create dynamite, making it safer to handle. Gunpowder is a different explosive composition, toluene is an aromatic hydrocarbon not the primary chemical for dynamite's base, and ammonium nitrate is part of some explosives but not the key chemical Nobel used as the base for dynamite from the options.

Answer:

b. nitroglycerine