Question

12. If the wave functions describing the 2s and two of the 2p orbitals are combined, the identical hybrid orbitals derived, form bond angles of:

a) 90°

b) 120°

c) 180°

d) 109.5°

e) None of these

ANS: B

can u explain how to do this question? thanks.

Answer 1

Inter mixing up of one s orbital and two p- orbital to form three identical sp^2 hybride orbital is called sp^2 hybridisation. A molecule cental atom involve in SP^2 hybridisation shape is planar triangle. The bond angle is 120⁰

        eg. BF3, BCl3

                In BF3 cental atom Boron involve in SP^2 hybridisation . Shape is planar triangle. Theangle between the any two adjacent SP^2 hybride orbitals is 120⁰

b) 120° >>>>answer