Introduction to Hydrogen (Part -1) - Chemistry, Class 11 Video Lecture

hello friends this video on hydrogen
part 1 is brought you by exam clear calm
no more fear from exam so objective of
this lesson is to understand position of
hydrogen pillar or it can be understand
the relation of dinitrogen there is
nothing but hydrogen gas you understand
the isotopes of hydrogen they are three
isotopes you'll understand the structure
physical and chemical property of water
which is made out of hydrogen will
understand hardens of water and how to
soften torrents of water you will also
understand heavy water and its
importance will study hydrogen peroxide
we will study the properties of hedging
outside manufacture of this usage of
admin backside and all the stuffs you'll
also study electron deficient electron
besides that one range hydrogen atomic
hydrogenation all these terms will
understand so let's start with the first
topic what is hydrogen as we all know
hydrogen is nothing but a chemical
element with a single-edged atomic
number one and this is the first element
in the periodic table right so this is
what hydrogen is right and it is a
lightest element and atomic weight is
1.0079 for unity so this is all we know
about hydrogen we have learned the
periodic table and we know hydrogen we
know the chemical property of hydrogen
that is I mean I think the chemical
symbol is edge atomic number is one
atomic weight is 1.0079 14 it looks like
the cylinder this is all we know about
hydrogen correct and we have hydrogen
being used in a lot of places for
example in the metallurgy industry where
we refine ores or do lot of stuffs in
metallurgy we use hydrogen extensively
hydrogen is used a lot
if you see the water water is nothing
but s - oh you must be knowing that so
we have hydrogen here also and what is
very very crucial for us right you see
the petrol and all there are organic
compounds we have C and H M form right
so these are all hydrogen involved there
you dig me the anything any gasoline you
have hydrogen in ball there
you take the rocket propellant hydrogen
exists there
hydrogen is used you take any vegetable
flows as hydrogen into giving animals
any living animals it has hydrogen you
take human also we have hydrogen in the
body in time you see we have what like
70% water what another word hydrogen and
so on so hydrogen exists both of the
plane you see the nuclear reactors we
use Hyper soup we use hydrogen to
control the nuclear reaction it will
tell you these things next to slide but
the point I'm trying to drive is
hydrogen is used which other places
sulfuric acid very common as if we use
right h2so4
as for the in fact all the acid hands
high pressure because the the definition
of acid itself is the one which can lose
H+ on they are acids right so it has
hydrogen so hydrogen has a huge
implication on life you see we are self
has of hydrogen embody any living body
has a visual nuclear electrical
production I presume any vegetables any
foods the nitrogen the gasoline if you
use has an auto hydrogen is a very year
but has huge potential to replace petrol
and diesel the gasoline in the cars
because these this coal and the petrol
diesel all these are getting exhausted
because we have limited source of all
these energy school petrol and gasoline
so hydrogen is coming
a potential replacement for all these
there are some challenges where it is
little difficult to store hydrogen
didn't come come out we'll talk about
that when we talk about Heights and
economic just to start with just to give
you a idea what hydrogen is and what is
the use of hydrogen why should we
selling hydrogen nitrogen north hydrogen
is used in there are new places
correct so and let's talk about history
of hydrogen also rectified before we
actually start the chapter so this was a
Hyderabad discovered in 16th century and
as you know right all the element
missions less atomic numbers or an ohmic
ma they were discovered earlier the one
with heavy atomic most in numbers were
discovered later because the chemist in
Hamburg it means to discover these
things right and it was first recognized
from
basileus bypass this will be actually
made in ireland software i guess and he
he did this reaction and he got some
gases and he recognizes this is
something right but he didn't know what
is that and indeed the name also till
that time the name was not given it was
just that okay some gas evolved when
iron in sulfuric acid reacted and then
this Cavendish was able to produce it
again in 1766 with other experiments and
then it was lavish sheer who gave this
name lambu shear gave this name because
it produces water because we see
hydrogen and burn in oxygen it produces
what you want right balance cube and
jams so it does lavish shear will give
this name because hydrogen beings hydro
means water and sand which reduces water
producer is high pressure so this was
name given by lavish here and it means
what will finish okay this is the
history of hydrogen so we have studied
what is hydrogen in a very video the
introductory way what are the use of
hydrogen
the next question that comes to our mind
is we have so many elements in the
periodic table right we have tons of
elements more than hundreds elements
what is so special about hydrogen that
we have one full chapter devoted to
hydrogen there has to be something
special right so we don't have a chapter
on oxygen we don't have a chapter on
carbon then we have but we don't have
shaft of a sulphur phosphorous rhodium
so we don't have different charter for
different elements but from hydrogen we
do have low carbon also I think we have
but try to do we have so there has to be
something special about hydrogen so what
is special about hydrogen that we have a
separate chapter for hydrogen right so
there has to be something again CPG this
guy has a special status high attrition
so let's talk about what a special about
Hattie the first thing is is the first
element right so not everybody is fast
this guy is first will be the first
element this guy is the lightest element
usually the lightest anyway it has only
one proton and one electron is goal
Neutron in the dihydrogen in the guide
hydrogen there is no military we'll talk
about different isotopes of hydrogen
we'll see you freeman clinking Microsoft
isotopes here we have electron Neutron
but in this hydrogen the most
occurring one there is no you run only
one proton one electron right and they
have properties similar to our care you
see in the periodic table that you are
the first
Gibbs which you have right lithium
potassium sodium wall is you can sodium
potassium this particular group one
elements it has properties similar to
that it has properties similar to
hydrogen also
halogen is this guy here if you see just
this is noble gas this is homogeneous I
have chlorine chlorine
I already induce kind of on the website
so it has a
we just ride it yeah so it has
properties similar to halogens also so
if you see it has probably similar to
this guy it has properties about this
guy and that's the reason why it was
little difficult to place high but we'll
talk about that
let's understand that it has properties
similar to group 1 and properties
similar to halogens also it is most
abundant element in the universe please
note we are not talking about Earth we
are not talking about solar system we
are talking about the whole universe in
universe hydrogen is 70% please note we
are earth will be this will be earth
somewhere and this will be our solar
system somewhere I believe right you see
our solar system is the whole universe
this big universe 70% sides big thing
right so you not talk about Earth we are
not emotional restraint of one whole
universe in this universe we have 70%
hydration in earth we have 15 percent
hydrogen 15 percent and in the third
most abundant now if you don't have that
much hydrogen but universe we have more
hydrogen not we have 15 percent hydrogen
and as I told if you talk about water if
you talk about petrol or diesel getting
gasoline you have got human being it
upon any bugs you are vegetable fruits
you have hydrogen right so hydrogen is
almost everywhere is very critical for
us it's used very heavily in the
metallurgy industry also right and to
create assets also and it is very much
abundant in the universe and third most
amend in our first man lightest element
and property similar to both al Qaeda
and halogens
not not every element has properties
similar to disrobe and sflow right so
that is something special about that so
let us talk about
the properties similar to alkane halogen
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