Which French chemist summarised his experiment in 1806, and proved that the mass ratio of elements in a chemical compound is always the same, regardless of the source of the compound?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Joseph Proust
The French chemist who summarised his experiment in 1806, proving that the mass ratio of elements in a chemical compound is always the same, regardless of the source of the compound, was Joseph Proust.
His work on this concept is known as the Law of Definite Proportions or the Law of Constant Composition.