Methane & ethane hybridization structure (Part - 15) - chemical bonding and molecular structure Video Lecture - Class 11

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make sure that you have watched part 1 -
Part 3 for let's take the 18 think Nam
they told in teen I have sp2
hybridization so I have the same carbon
I have carbon if you see is my 1 is to 2
is to be 2 right so I'll take the
outermost one so 2s2 2p2
ways to keep eating my in this case I
have my 2 carbon molecules the same form
if you see this is my carbon is my cabin
so 2s2 2p2 here 2 s 2 + 2 we do now what
will happen is one electron will go to t
already and it is formed sp2 hybridized
please not you see one electron move 2p
orbital there is not forming sp3 have it
it is forming sp2 hybrid orbitals ok in
this case now you see how it works is
the moment I have hydrogen orders coming
what it does is it forms something like
this so if you see this is my three sp2
right this is my sp2 this is one sp2 and
this is also minus P so this is those of
my Squidoo this is my SP 2 and this is
minus P 2 hybrid orbital this 2p is
there so this is my 2 V and this is also
my to correct so with this hybridization
I got three sp2 this is also SP 2 are
both are sp2 actually three sp2 here I 1
2 P 3 s / - it will be here of the visit
three sp2 ntp
so all the three sp2 have the coloration
now if you see there is a lone pair here
there was a lone unpaired electron here
so these two merge actually these two
sp2 hybrid orbitals they must deform
sigma bond they told Sigma one is
head-to-head overlap ah two orbitals
unpair so it's on a sigma bond now this
guy's also unpaired this orbital also
outweigh all these four orbitals are
unpaired so what will happen is hydrogen
molecule will cling to it because
hydrogen molecule also has this unpaired
electron in the red
they will cling to it and form bond
correct what will happen to these two so
this two will form a PI bond if you see
they are a PI bond because they are not
head-to-head they're sideways overlaps
with this will form a PI bond just
invert the correct this is a five on
here over there is a PI bond this is
this is one pipe on Ashley and that's
what you see you see the shape of ethene
is all our sigma bond actually all our
sigma bond here over the first is a
sigma bond and the second one is a pipe
on this person is Sigma bond and this is
one PI 1 please don't get confused don't
think it is 2 pi bond is one PI bond
right this is whole thing is one PI bond
this is one PI bond so this is one PI
bond and these are all if you see it's a
head-on collision between this is s and
p orbital so it'll all form sigma 1 and
that's how the Athenians or and if you
see in this case it's all sp2 hybridized
you'll see carbon getting SP hybridized
in case of ethyne so again we'll see
carbon will write the electronic
connection one is to t2 ntp us to see we
see this is my electronic integration
for the outermost shell us 20 we do
stomata Lapidus
I have my two carbon molecules right so
2 s 2 is this one and 2 e 2 is this 1 2
s 2 is this one we do is this one the
green ones are my electrons and the blue
one who are white orbitals now again
same thing will happen one electron we
move from here to here so if you see us
in the end do that is all 2 P 2 s 2 P 2
P 1 electron will move from 2 s 2 P and
von espy I prayed already here you see
these are still 2 P 2 V so let's see
here the figure so if you see now it
comes so here in this case if you see
this is my 2p
so is this is my SP and this is my St
right similarly this is my SP and is my
SP other things if you see this is my
pre orbital and this is my P over here
or this is my PR but even this is AP
orbital so if you see now 1 SP has my
electron 1 SP has one left from right 1
P has my electron 1 P has one electron
correct is a 2p you want to specially
correct heroes ABC 1 SP is 1 electron 1
SP 1 I'm trying to now this SP SP
orbitals since they have unpaired
electron they form the bond called Sigma
bond right and these hydrogen atoms also
form a sigma bond because it has one
electron here unpaired electron one
unpaired electron and they'll form a
sigma bond right this is s orbital in
the form a sigma bond what will happen
to these guys these guys if you see this
2p orbital they will form one bond he
says one bond this is 1 1 this is 1 C 1
1 1 PI bond and these guys are also form
a PI bond this is another PI 1 so 5 huh
so they are 2 pi bond all right I'll
write something like this this is 1 PI 1
with one arrow and the one without error
is another PI bond correct so I have two
pi bonds and one Sigma bond
she received also there is this is one
Sigma bond this is one Sigma 1 first is
my Sigma 1 and the next - I got is 5
hope you understand this is my design
this got hybridize and it form shaped
like this I got 2 SP hybrid orbitals and
my 2p where there so there's 2 P mass to
pounce PI bond SP SP got one Sigma bond
and this SP and s & SP and s what one c1
energy well thank you
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