Arrange the three isotopes of hydrogen in the descending order of their reactivity with chlorine.

Arrange the three isotopes of hydrogen in the descending order of thei

1.	Arrange the three isotopes of hydrogen in the descending order of their reactivity with chlorine.
Answer» Solution :ORDER of reactivity : `H_(2)gtD_(2)gtT_(2)` . As the MASS number of isotopes increases, BOND energy increases and their reactivity DECREASES.reactivity decreases.