Question

3.Mention the contribution of the following scientists

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

Answer 1

Contribution of the following scientists are :

1. Antoine Lavoisier : He conducted experiments to know about the nature of combustion.
2. Robert Boyle : He discovered that how do gases behave.
3. Joseph Priestley : He prepared oxygen (O₂) by heating red mercuric oxide (HgO) with infrared rays from Sun and he proved that air was not an element.
4. Sir W. Ramsay : Sir William Ramsay and Lord Raleigh discovered argon which is a noble gas, and it is also called rare gas or inert gas. They also prepared neon, krypton, and xenon by distillation of liquid air.