Which one of the following group-15 hydrides | vedclass

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(C) The reducing character of group-$15$ hydrides depends on the bond dissociation enthalpy of the $E-H$ bond. As we move down the group from $N$ to $

Vedclass · Accepted Answer

$BiH_3$

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(C) The reducing character of group-$15$ hydrides depends on the bond dissociation enthalpy of the $E-H$ bond. As we move down the group from $N$ to $Bi$,the atomic size increases,which leads to a decrease in the bond dissociation enthalpy of the $E-H$ bond. Consequently,the stability of the hydrides decreases and the reducing character increases. Therefore,$BiH_3$ has the lowest bond dissociation enthalpy and is the strongest reducing agent among the group-$15$ hydrides.

Which one of the following group-$15$ hydrides is the strongest reducing agent?

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