Question

Which of the following orbitals are gerade?

• A. $p_{x}$
• B. $2p_{x}+2p_{x}\overset{y - axis}{ \rightarrow }$
• C. formation of $H_{2}$
• D. $d_{xy}+d_{xy}\overset{x - \text{ axis }}{ \rightarrow }$

Answer 1

Answer: (C)

(i) $p_{x} \rightarrow $ ungerade
(ii) $2p_{x}+2p_{x}\overset{y \text{ -axis }}{ \rightarrow }\pi -$ bond $ \rightarrow $ ungerade
(iii) Formation of $H_{2} \rightarrow \sigma -$ bond $ \rightarrow $ gerade
(iv) $d_{xy}+d_{xy}\overset{x - \text{ axis }}{ \rightarrow }\pi -$ bond $ \rightarrow $ ungerade