Question

QUESTION 52 - WRITE YOUR ANSWER IN THE SPACE PROVIDED (5 marks Each carbon in ethene (C2H4) is hybridised. a. Draw the Lewis diagram for ethene and indicate the hybridisation state for the carbons. [2 marks] b. Draw the orbital diagram for the hybridised carbons in ethene, clearly showing the hybrid carbon orbitals, as well as the electrons that they hold. [3 marks) For reference, the ground state orbitals for an unhybridised carbon have been included on the left. Hint: You need only consider what happens to the electrons in the n-2 orbitals in the hybridised state. Potential energy ground state Potential energy hybridised state Ground state Hybridised state

Answer 1

Ja) The Lewis diagram for ethylene can be drawn as follows. A cach flybdrisation of C-1 = sph Hybridization of c^2 = sp2 structure: Trigonal planar