Chemical Properties of Group - 17 Elements (Part - 2) Video Lecture - NEET

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the reaction with season take hydrogen
it will form lot of oxides with oxygen
okay so as I don't had halogen forms
many upside into oxygen but most of them
are unstable
for example fluorine will form two
oxides Oh F - OH - AB this is my oxygen
fluoride this is dioxygen dichloride and
out of these this is actually thermally
stable at 298 thermally stable at my 298
Kelvin but this is unstable okay
please note as I told you the name that
this name is oxygen which is called
oxygen alright and this is called
dioxygen alright okay
but if you talk about other plural
oxides you see the formula as for
example co2 to see at 2:03 so in this
case first chlorine comes then oxygen
comes but here first oxygen comes and
then Shirin comes any guess why think
from the electronegativity perspective I
told that the first element is more
electro positive this is more
electronegative if you talk about the
electronegativity chlorine has the
electronegativity of 4 oxygen is almost
three point four four then we have
chlorine three point one six and then I
have bromine it's almost two point nine
six and then I have iodine there is
almost two point six so you compare
oxygen and fluorine fluorine is more
electronegative so fluorine comes in the
last oxygen
in the first if you talk compare
chlorine and oxygen glowing in oxygen is
more electronegative so sorry yeah so my
chlorine comes oxygen is more
electronegative so oxygen comes last
chlorine is more electrical stips
chlorine comes first
okay same thing if you see the bromine
bromine bromine oxide to something like
this so oxygen is more electronegative
oxygen comes in the last bromine comes
in the first I didn't also oxides out of
this one I too right 205 I 207 so this
way also if you see oxygen is more
electronegative so oxygen comes later
and because of this if you see this is
called oxygen fluoride but other
halogens if you see they are called
halogen oxide okay this oxygen fluoride
kind of me died actually right but his
chloro oxide made dichloro oxide
dichloro trioxide those kind of name for
it this is oxygen fluoride and this is a
halide first in announcer please pay a
little attention here why because of the
change in the electronegativity here
when you talk about oxygen and other
elements when we had when we talk about
H X in this case although X we are more
electronegative so it always H X when I
talk about oxygen and oxygen and X
combination fluorine comes later but
chlorine bromine and iodine they comes
before oxygen because of the
electronegativity difference okay now
let us talk about the uses of this
example o 2 F 2 is my dioxygen chloride
and this is used for nuclear plants it
is used to oxidize plutonium from
nuclear plant
directly from nuclear plant is dangerous
so what we do is this old way of too
will actually react with this plutonium
and to form T uf6
this is not harmful okay now let us talk
about the story has done let's talk
about the oxides of chlorine bromine and
iodine we talk about chlorine so
chlorine have different oxides CL 2 CL 2
or 3 CL 2 CL 2 or 6c and 207 like that
we talked about bromine bromine will
have different oxides we are - we are -
five seven like that and and if you talk
about IO mean it will have oxide like I
go for i5 i7 okay these chlorine oxides
are actually explosives these are our
exposes these bromine oxides they exist
at low temperature exist and low
temperature we talk about the iodine one
they actually decompose
let me decompose on living on eating
this decompose so stability of oxide if
you talk about I teens are written more
stable then we have bromine and then we
have glue and put the chlorines are
explosives this bromine czar okay they
existed room temperature but the iodine
ones are again more stable they
decompose only on heating but the
chlorines are pretty explosive the clo2
actually is used for breathing agent
Mojave yeah
so use a bleaching agent is used for
bleaching inland we will talk about the
bleaching action of chlorine is used for
bleaching action and this is for
used for breaching my paper pulp also
for breaching clothes to give different
shades in the textile we use that with
also used for water treatment we'll
discuss about that and here I do 5 it is
used to estimate my carbon monoxide
carbon monoxide estimating I used it in
that ok structure wise if you see clo2
it is something like this CL yeah
CL - yeah and this angle is 112 degree
one word to me if we talk about clo2 I
have a chlorine here I have oxygen here
and have oxygen here and this angle is
100 I'm not covering all the oxides only
if you the oxides I talked about the
structures in the properties those the
one which are pretty useful in our day
to day life ok that's all we have the
reaction with oxygen thank you
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