Although almost all stable organic species have tetravalent carbon atoms, specie

Question

Although almost all stable organic species have tetravalent carbon atoms, species with trivalent carbon atoms are known to exist. Carbocations are one such class of compounds. If a neutral carbon has 8 valence electrons associated with it (2 from each of 4 bonds), how many valence electrons does the positively charged carbon atom have? What hybridization might you expect this carbon atom to have? What geometry does the carbocation have? What relationship do you see between a carbocation and a trivalent boron compound such as BF3?

Explanation / Answer

a) six electron

As a carbocation has four sp3 hybrid ,with one empty orbital so it has a total of six electrons in the valence shell

b)sp3 ( with an empty orbital)

c)trigonal planar geometry

d)Both have planar geometry,but the hybridisation in BF3 is sp2 but a carbocation

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