question_answer

The \[As{{F}_{5}}\] molecule is trigonal pyramidal. The hybrid orbitals used by the As atoms for bonding are:

A)  \[{{d}_{{{x}^{2}}-{{y}^{2}}}},{{d}_{{{z}^{2}}}},s,{{p}_{x}},{{p}_{y}}\]

B)     \[{{d}_{xy}},s,{{p}_{x}},{{p}_{y}},{{p}_{z}}\]

C)     \[s,{{p}_{x}},{{p}_{y}},{{p}_{z}},{{d}_{{{z}^{2}}}}\]

D)     \[{{d}_{{{x}^{2}}-{{y}^{2}}}},s,{{p}_{x}},{{p}_{y}},{{p}_{z}}\]

Correct Answer: C

Solution :

As: Hybridisation involved is \[s{{p}^{3}}d\] involving \[s,\,{{p}_{x}},\]\[{{p}_{y}},\,{{p}_{z}}\] and \[d_{z}^{2}.\]