Question

A ·group 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is ______.

Options

• Bi

• As

• p

• Sb

Answer 1

A ·group 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is Bi.

Explanation:

Because the dissociation energy of the Bi - H bond is very low, BiH₃ is the strongest reducing agent among the hydrides of the 15 group elements.