Question

What is isotopic effect?

Answer 1

There are two types of isotopic effects
1,Kinetic
2.magnetic

1.The kinetic isotope effect (KIE) is the ratio of reaction rates of two different isotopically labeled molecules in a chemical reaction.

2.Magnetic isotope effects arise when a chemical reaction involves spin-selective processes, such as the radical pair mechanism.

Answer 2

There is a line in my book... Sulphonation reaction shows Isotopic effect. What does it mean?

Answer 3

its is due to electrophile subtitution
and also sulphonification is an reversible reaction which shows positive isotopic effect