Question

How reducing character is related to bond dissociation enthalpy?

Answer 1

Answer:

As the atomic size increases the bond-dissociation energy decreases which leads to easily breaking of non-metal hydrogen bonds and release of hydrogen as H-. As hydride is responsible for reducing character therefore reducing character of hydride increases with decrease in bond dissociation energy.

Answer 2

Heya Mate.........

The reducing character increases down the group because the bond strength of the E−H bond decreases. As the size of the element E down the group increases and thus the bond dissociation energy decreases. This facilitates the dissociation of Hydrogen atoms and hence down the group, thus the reducing character increases.

Hope this will help you.........