Introduction to Base (Acid, Bases & Salts) Video Lecture - Class 10 | Best Video for Class 10

here's to restart base
first we discuss what do you mean by the
base yes so first we will discuss the
definition of base
a visitor compound which contains
burnham or replace Evan porch negative
or hydroxyl group it means a base hit a
compound
which contains
bun on more
watch minus ions and O's minus ions also
called hydroxide line
for jumpin we are taking sodium
hydroxide and a OS so we can say that is
a base since it keeps force minus ions
and it dissolve in water any word at
room temperature which artist in the
solid form this s the symbol I of the
solid form when it will dissolve in
water after graduation it gives any plus
the dissolve in water which is called na
plus of course
any plus of course it means this NE + +
f d steyn the water plus watch- at
course we also called hydroxide ion so
we can see that sodium hydroxide that
array which is a base since it gives
Porsche negative ions similarly we are
taking the example of koh he also gives
over to negative ions like naoh and
calcium hydroxide CA h four coins which
also gives both negative ions when a
dissolve in water which is another name
is slack line
now we are saying that when compounded
on water then it gives us negative ions
that we will fizzle term reg base so
there is the banner para notice
if base is water-soluble
then it is corn al Khali
for jumpin naoh qh RB edge its name is
who vidiyum whole image rubidium
hydroxide
all these three terms substance at
omelet alkalis these all are soluble in
water now if we are taking a base that
is not completely soluble in water that
term on the base so this it is not
completely dissolve in water
it's not completely dissolve in water
to the jumpin we are taking the example
of FP h whole toys and key boys pole
Christ these are required on the base so
we can say that all I'll courage our
base but all with these are not alkylene
it means we draw sugar so here is the
small figure and the alkylene like
sodium hydroxide putting some hydroxide
and surrounded by the base like Al which
holds rice or a pH whole time so we can
say that all alkalizer message but all
wastage are not alkylene means
all I'll college
our base but all bases are not equally
now after this we will discuss about
physical properties of the basis
physical power package of the message
now first punish bitter in taste
second edge so be to touch
and third is some are water soluble
poor punish echo solution conduct
electricity
and keep Spanish turns red litmus to
blue litmus so these are some physical
properties of the base ish now he will
discuss about classification of the
bases
there is so many criteria for the
classification of message we'll discuss
we are taking first criteria on the
basis of there is strength
then we are taking the criteria of their
strength then we are talking about
number of negative ions or hydroxide
ions that will be given by object
particular based on Al Khaleej if Al
Khaleej your bases gives more number of
or negative ions then we can see that
there is I strong base and it gives less
number of unless ur number of all
negative ions then that is a be pleased
so on the basis of their strengths we
can divide into two categories
first one is strong base
and second its peak pays
so first we are taking strong base word
about strong base
message
or al khaleej
with Gibbs
more number of
cause negative ions means they are
completely ionized
completely ionized
for a jumper we are taking sodium
hydroxide when dissolve in water it
keeps na+ and os negative i'm suppose we
are taking initially that ish one
hundred one hundred percent and emerge
now after reaction or after dissolving
the water it gives ninety-nine point
nine nine percent old negative ions so
we can see that is completely ionized
and I Jason means the breaking of them
this sodium hydroxide the breaking of
the sodium hydroxide process is called
iodization forces since this breaking
process or after this broken breaking
process it gives positive and negative
ions dead try this process it called
ionization so if this sodium hydroxide
gifts at 99.99 person over to negative
ions then be considered is a strong base
it means this accomplished are almost
completely ionized similarly if you are
taking another example like potassium
hydroxide when dissolve in water it
gives k plus aqueous plus 0 H negative
ions he also gives ninety-nine point
nine nine percent or negative ions so we
can see both anywhere 10 keywords are
strong please it means both are
completely ionized means both are gifts
ninety-nine point nine nine percent
hydroxide ions now the second HP quiz
basis which gives
less number off
over 2 negative ions reddish hydroxide
ions
means
these bases are
I'm Vinnie ionized
for example
if we are taking sooo ammonium hydroxide
nh4 voyage after ionization it gives an
S 4 plus and OH much negative ions but
the number of oh this oh shi- is up to
thirty percent it means after dissolving
the water efco solution of an experiment
in thirty percent over to negative ions
and remaining seventy percent it
contains NH porridge so we can see that
is not completely ionized so that is
termed as deep bass similarly we are
taking the example of silver hydroxide
if you are taking the another example of
silver hydroxide then silver observe
hydroxide koh it also gives less than
number of hydroxide ion so it is also
called deep bass now the second criteria
on the basis of their consultation
on the basis of the consultation bases
are of two types
fastest annual base
and track a bit consented be
this cardigan depend upon the amount of
face they are taking the diagonal wave
when we can say simply that in that case
h2o is greater than amount of this and
if we are taking the criteria of
considered wage then we can say that
amount of base is greater than water
now we are discussing some important
usage of this issue
first is if we are taking the example of
calcium oxide also called to climb
it is used to neutralize acidic nature
of soil huge use to neutralize
I took a keen eternal flame
it means when due to a certain rank or
excessive use of fertilizers then so I
becomes isida then by reducing of cook
lines we can utilize of the soil we'll
just second dish qos petition I'd
rockside also called caustic put us
it is used to conduct electricity
between two electrodes
so these are the some usage of the
message now we are discussing about
neutralization reaction on utilization
the reaction between as a nun phase is
called neutralization reaction and I
kissing each called neutralization
equation so we can simply then say that
a reaction between
acid and base call
neutralization the example
after the three accents the product page
soil in water
we can simply write that as it plus face
when both are react after the reacts and
it keeps salt and water if you are
taking their jumpin off HCL in place of
acid and base any watch after the
reaction it gives salt that will be any
CL and ash too so that is called
neutralization
and here is the 57.1 close you'll heat
is released so we can say that
neutralization reaction is always a
geothermic reaction and in the
neutralization reaction if we are taking
a strong acid and strong base then
always it is released the amount of heat
age 57.1 flow joule per mole so if we
are taking strong acids and strong base
and after DCF Senate gifts soil and
water plus amount of heat that will be
57.1 close jewel and if we are taking be
considered weak base then amount of the
heat liberated always less than 57.1
close you'll for example if we are
taking a CH 3 CH we know and it is a big
acid and frigid here to the strong base
like any urge just strong base after the
reactions it gives a salt that is cs3
cwna plus h2 plus heat energy but in
this time the amount of heat energy is
less dense 57.1 energy less than
50 75 one since in that case some amount
of the energy is used for the ionization
of this because it and if we are taking
both are my strong then there is no need
of for the ionization energy but if we
are taking the big asset of pig face
then some amount of energy it's used for
the ionization of the because of the
quiz so that's why when we are taking
the because it'll be faced that amount
of the energy decreased and the we are
taking both our beach then amount of
much more decreased then 57.1 so we are
saying that neutral utilization the
epson
it's always after thermic reaction
means in this reacts are always cute is
released its amount it's maybe fifty
seven point bun or less than fifty seven
point one which depend upon the strength
of a database now we are discussing the
importance of utilization in everyday
life
neutralization in everyday life
first one is in in digestion
how do you know that our Islamic
religious at CL sometimes religion of
its air is too much due to this axis of
x TL of s read each created so for
unutilized a utilization of this HCL or
acidity we are using magnesium hydroxide
she also called anti sit n times it
means which bugs again against acid they
also called milk of magnesia
sometimes you are using the you know you
know you know you know what is the use
of you know you know you know means it
is a basic component and it's huge for
neutrals the acidity it means fence our
system of produces too much HDL then for
neutralizing the acidic environment due
to kill that CL we are using some
antacids for jumpers milk of magnesia
that is called magnesium hydroxide or we
are also taking baking soda that is
sodium hydrogen carbonate NH co 3 called
baking soda or we are simply taking you
know basically you know contain this
baking soda and the second vanish and
bit
testing saw visual arms contain formic
acid its corrosive and poisonous effects
can be utilized by rubbing soap which
contains an alkali that is sodium
hydroxide or by rubbing baking soda that
contains sodium bicarbonate or by
calamine solution that is gene carbonate
resting so bass contain an alkali and
it's poisonous if F came in utilizing
acid like acidic acid present in vinegar
so if aunt which contains formic acid at
coh it is neutralized by the soup that
contain alkali Anna wash our baking
powder baking soda the deck sodium
bicarbonate and hco3 and if aunt which
contains a base or alkali then it is
neutralized by the using of acidic acid
CH 3 cos that is present in vinegar
now the third application in the soil
treatment
due to acid a grant or excessive use of
fertilizers soil becomes it may be
acidic or it may be basic if soil is
acidic then by the using of calcium
oxide or calcium hydroxide we can
utilize the aesthetic effect of soil and
we can ultimately obtain a neutral soil
and the fourth one is factory wastage
the basis of many package contains Isaac
they are allowed to flow into the water
bodies thighs its vertical face and
other organism the factory wastage are
therefore neutralized by adding basic
substance H so acidic factory message as
a dick head tree base stage neutralized
by the adding of
basic substances
so these are the some important useage
that we are used in the daily life now
in the next lecture we are discussing
about indicators thank you