Question

Potassium combines with two isotopes of chlorine ($Cl-35$ and $Cl-37$) respectively to form two samples of $KCl$. Their formation follows:

• A. Law of constant proportions
• B. Law of multiple proportions
• C. Gay-Lussac's law
• D. None of these

Answer 1

The correct option is D None of these

The reaction of potassium with isotopes of chlorine does not follow any of the mentioned laws and is a drawback of the law of constant proportions as no fixed ratio is obtained after a reaction with isotopes.