A group 15 element forms $ d\pi - d\pi $ bond with transition metals. It also forms a hydride, which is the strongest base among the hydrides of other group members that form $ d\pi - d\pi $ bonds. The atomic number of the element is …….

Question

Consider the following statements:
Statement-I: H$_2$Se is more acidic than H$_2$Te.
Statement-II: H$_2$Se has higher bond dissociation enthalpy than H$_2$Te.
In light of the above statements, choose the correct option:

Answer 1

The element must belong to Group 15 and participate in $ d\pi - d\pi $ bonding. Potential candidates include N, P, and As. Phosphorus ($ P $) exhibits $ d\pi - d\pi $ bonding. Furthermore, $ PH_3 $ functions as a stronger base than $ AsH_3 $. The atomic number of Phosphorus is 15.

A group 15 element forms \( d\pi - d\pi \) bond with transition metals. It also forms a hydride, which is the strongest base among the hydrides of other group members that form \( d\pi - d\pi \) bonds. The atomic number of the element is …….

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