Sp2 Hybridisation Video Lecture - Class 11

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watching the video please make sure that
you have watched part 1 - Part II - in
case of sp2 hybridization 1 s and 2 P
orbitals overlap or 2 P orbitals large
and rearranged to form how many sp2
habitation 3 obviously y plus 1 plus 2
is 3 so it forms three sp2 hybridized
orbitals of equivalent energy and Chi
correct so one s and 2 P it is peg 1 s 1
P 1 P it forms something like this right
3 orbitals here all boron and carbon
compound with double bond most sp2
hybridized carbon whatever for example
it he he is possible sp2 hybridization
so the same thing we shall drawn there
so 1 s 1 P 1 P all combine to form sp2
hybridization if you see they are three
orbitals three or three sp2 hybrid
orbitals
all are equal shape in energy and they
are one many degree and the shape is
triangle planar alright let's take an
example of bf3 so boron I have of 1 s 2
2 s T E
okay this is my neck Trani condition of
boron so I am just writing the outermost
one the valence on 2s2 2p1 right it has
got to it has got one so now what will
happen is the same thing if you see here
so this outer worst I am just drawing
the yellow is the outermost valence cell
so 2's will have two electrons and one
of the P will have one electron the
other two P will be empty so I made it
blue because there is no electron there
this yellow one p orbital has one
electron and this yellow spherical s
orbital has two electrons this is 2 s
this is 2p and they are all to be but
these are not having any electron so I
mean now what happen is one electron
will move from s to P and now they'll
form sp2 hybridized notice this verse
two ways supposed to read this verse to
T and this was to be now one electron
move from s to P if you want to draw
with you once again so this from s it
went to B now it is SP hi pride or the
desert if you see only three orbitals
took part in this so we got sp2 hybrid
orbitals you see in the they move how it
looks like so I have three fluorine
molecules coming and I have this boron
here actually free-flowing molecules
coming and now if you see this will get
hybridized so this becomes SP do this
becomes sp2 and this becomes SPD right
the third P is not taking part in this
hybridization so it is as it is and on
each of these sp2 hybrid orbital will
have one electron each so you see one
electron each here and on the flooring
monikers which has got also has one
electron because they are unpaired so
since these aren't paired this is um
parameter this is our plane orbital so
there will be overlap right dis fluorine
to overlap at the
blow Oregon Borana sp2 hybridized
orbital because this orbital like this
orbital both has unpaired electrons
similarly in this way over this is my
fluorine and this is my boron sp2
hybridized orbital so both have one
electron each then overlap Tainos if you
see the red one is the electron of the
fluorine and the blue one is the
electron of the sp2 orbital of boron and
then overlap and then form be empty and
the shape also which we see whether bf3
experimentally is triangle cleaner the
same thing we can prove using Vesper
theory also if you see this may blow me
you have three electrons now Hashem -
two fluorines
see laureen's so it is a molecule which
has free bond pair and zero lone pair so
it is trigonal planar right so according
to Vesper also if you see this man blue
movie this is three for E and there is
no lone pair in the bromine so it get
the tribe not leadership similarly here
also with the valence bond Theory also
we get the same sheet hate but that
Roche is different to explain because
bf3 is primal planar is experimentally
proven right and why it is final final
is playing at two different Theory one
while the VSEPR theory and there is
balance bond to it thank you visit exam
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