Question

which of the following is not a contribution that alchemists made to the science of chemistry?
a discovered acids and bases
b developed glassware for performing reactions
c improved process for extracting metals from ores
d discovered subatomic particles

Explanation:

Alchemists made contributions like discovering acids and bases, developing reaction - performing glassware, and improving metal - extraction processes. The discovery of subatomic particles occurred much later with the development of modern physics and was not a contribution of alchemists.

Answer:

d. discovered subatomic particles