Nodal planes of pi-bond(s) in CH_2=C=C=CH_2 a | vedclass

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(C) The molecule $CH_2=C=C=CH_2$ is an allene derivative (specifically,buta$-1,2,3-$triene). In this molecule,the terminal $CH_2$ groups are perpendic

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one in molecular plane and two in plane perpendicular to molecular plane which contains $C-C$ $\sigma$-bonds

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(C) The molecule $CH_2=C=C=CH_2$ is an allene derivative (specifically,buta$-1,2,3-$triene). In this molecule,the terminal $CH_2$ groups are perpendicular to each other. The two $\pi$-bonds are formed by the overlap of $p$-orbitals. One $\pi$-bond is formed by the overlap of $p_y$ orbitals,and the other $\pi$-bond is formed by the overlap of $p_z$ orbitals. The nodal plane of a $\pi$-bond is the plane containing the internuclear axis and perpendicular to the plane of the $p$-orbitals. For the two $\pi$-bonds in this system,one nodal plane lies in the molecular plane (containing the $C-C$ $\sigma$-bonds),and the other nodal plane is perpendicular to the molecular plane.

Nodal planes of $\pi$-bond$(s)$ in $CH_2=C=C=CH_2$ are located in

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