1.

Give the structure of orbit picture of ethene show (i) sigma-bond (ii) pi-bond (iii) Give the number of sigma and pi-bond. (iv) Write the dihybridisation.

Answer»

Solution : (i) Orbital picture of only 1 BOND of ethene :

(ii) Orbital picture of ethene : In given picture figure (a) `pi`-bond (B) `pi`-electron cloud (c) Bond LENGTH andbond angle.

(iii) In ethene `sigma` and `pi` bond : There are 5 `sigma`-bond. In which their are `4C-H sigma`-bond and `C-C sigma` bond. Ethene has `1pi`-bond. because their is DOUBLE bond.

In ethene, their are 4C-H `sigma`-bond, carbon is `sp^(2)` hybridised DUE to the overlapping of orbitals.
In ethene, sp-orbitals of carbon over laps with each other and forms `pi`-bond. In ethene molecule 2p-2p orbitals arranged parallel and perpendicular to plane of H-C-C-H between two carbons and forms one `pi`-bonds.


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