Question

Mention the contribution of the following scientists :

1. Antoine Lavoisier
2. Robert Boyle
3. Joseph Priestley
4. Sir W. Ramsay

Answer 1

1. Antoine Lavoisier
   Conducted experiments to know the nature of combustion.
2. Robert Boyle
   Discovered a rule about how gases behave
3. Joseph Priestley
   Prepared oxygen by heating red mercuric oxide with infra red rays from Sun and proved that air was not an element.
4. Sir W. Ramsay
   Sir William Ramsay, alongwith Lord Raleigh discovered ar-gon; a noble gas, which is also called as rare gas or inert gas. He also prepared neon, krypton and xenon by distillation of liquid air. In 1910, he discovered radon.