Question

Cavendish’s name for hydrogen gas was "inflammable air." The word inflammable means "to burn. "Why did Cavendish use this name?

Answer 1

The gas formed in the experiment could catch fire easily. So, he named the gas inflammable air.

Answer 2

he used that name because if you lit hydrogen on fire it would catch. therefore, it was dangerous to be around. think of it as a kind of warning. :) hope that helps.