Class 8 Exam > Class 8 Videos > What is Electroplating and How is it Done?
What is Electroplating and How is it Done? Video Lecture - Class 8
FAQs on What is Electroplating and How is it Done? Video Lecture - Class 8
| 1. What is electroplating? |  |
Ans. Electroplating is a process in which a metal object is coated with a thin layer of another metal using electricity. It is done to improve the appearance, durability, and corrosion resistance of the object.
| 2. How is electroplating done? | |
Ans. Electroplating is done by creating an electrolyte solution of the metal that will be plated onto the object. The object to be plated is made the cathode, and a metal electrode of the plating metal is made the anode. When electricity is passed through the solution, metal cations from the anode are reduced and deposited onto the object, forming a smooth and even layer.
| 3. What are the steps involved in electroplating? | |
Ans. The steps involved in electroplating are as follows:
1. Cleaning: The object to be plated is thoroughly cleaned to remove any dirt, grease, or oxide layers.
2. Preparing the electrolyte: An electrolyte solution is prepared using the metal salt of the plating metal dissolved in water.
3. Setting up the electrolytic cell: The cleaned object is made the cathode, and a metal electrode of the plating metal is made the anode. Both are immersed in the electrolyte solution.
4. Electroplating: When electricity is passed through the electrolyte, metal cations from the anode are reduced and deposited onto the object, creating a layer of the plating metal.
5. Finishing: After plating, the object is rinsed, dried, and polished to achieve the desired appearance.
| 4. What are the applications of electroplating? | |
Ans. Electroplating has various applications, including:
1. Decorative purposes: Electroplating is commonly used to give objects a shiny and attractive appearance, such as jewelry, silverware, and decorative items.
2. Corrosion protection: Electroplating can provide a protective layer to prevent corrosion on various objects, like car parts, bathroom fittings, and kitchen utensils.
3. Electrical conductivity: Electroplating is used to enhance the electrical conductivity of objects like connectors, circuit boards, and electrical contacts.
4. Wear resistance: Electroplating can increase the durability and wear resistance of objects like tools, machine parts, and automotive components.
5. Restoration: It is also used for restoring antique or damaged objects by providing a new layer of metal.
| 5. Is electroplating environmentally friendly? | |
Ans. Electroplating can have environmental impacts due to the chemicals used in the process and the waste generated. However, efforts are made to minimize these impacts by implementing proper waste disposal systems and using environmentally friendly processes. For example, many electroplating facilities use closed-loop systems to recycle and treat the electrolyte solution, reducing chemical waste. Additionally, regulations and guidelines are in place to ensure the safe handling and disposal of electroplating chemicals to minimize their impact on the environment.
Text Transcript from Video
hello friends this video on chemical
effects of current part 10 is brought to
you by exam for your calm no more fear
from exam so now we got to know that a
couple of changes take place if the
solution methylene passes through it now
making use of this concept came up this
process of electroplating now this is a
very interesting process let me give you
some of the applications where you can
see the process of electroplating only
then you will feel like knowing more
about it now have you ever observe the
artificial jewelry like you have jewelry
made up of real gold silver diamond and
all in all such precious stones but you
also have some artificial jewellery
which are which is not made up of real
gold but it is made up of some other
metal but it is gold-plated so it is
made up of some other metal inside which
is not expensive but on the top there is
a thin layer of gold which makes which
gives it the appearance of gold so it
looks like gold but it is not wood so
that is it is less expensive also
similarly you have silver plated jewelry
platinum plated jewelry because all
these methods are quite expensive so if
you want to create a solid jewelry out
of these metals they are going to be
damn expensive so you want to get them
inexpensive you use some other metal
just on the top you give a plating of
gold or silver
similarly you would have seen a lot of
decorative items like the flower vases
which have a shiny appearance for the
top but actually inside there is some
other metal so if you want what you can
do is in case you have a very old flower
box at your home which is worn out of
certain places you will see that at
certain places it like it has been
scratched the upper coating is crashed
and you can see the metal which is
present underneath better so the
breadmaker which is present inside that
is not shiny enough that doesn't have a
good appearance but when it is plated
with some
so that that creating of the metal that
method is quite shiny and attractive to
look so that is why they are clicking
has been given so a lot of items get
cleaning off a different metal so they
see it is made up of one meter but on
the top of that there is a thin plating
of some other metal
in fact if you look at the parts of your
method make the car parts they also have
coating of other metals so
electroplating is deadlier also with
metals like nickel copper chromium so
they are used for electroplating
different car parts not only that the
wheel use of vehicles they have also
created with chromium so chromium is one
such metal which is the highly resistive
it is very protective in nature because
it a once you've got a nun some metal
aid the cheaper metals with chromium so
chromium first of all it is very
resistant it does not get dust it does
not get corroded so it doesn't react but
with air or water so that means in to
protects in the middle which is present
inside it also has a shiny appearance so
the look and feel is also good at the
same time chromium is very expensive so
if you actually want to three make the
entire medium out of chromium that is
going to be very expensive so instead of
doing that you make it out of some other
inexpensive metal and just give a thin
layer of chromium so that means it is
economical as well so these are some of
the benefits with chromium and that is
why in a lot of places like in car parks
the wheel rims not only that even the
bath taps in your bathroom you have seen
that the tabs and the showers and all
those things have a covering off or a
coating of a metal like chromium because
the same thing because when these
accessories are a part of your bathroom
so they are constantly in touch with
water so there are lot of metals get
corroded with water a lot of their
length if they are made up of iron what
will happen in presence of it exposed
being exposed to water for long time the
iodine can
our state so that is the presence of
rats just the reddish orange thing
appears on the item and that is how it
might fit damaged so a coating of
chromium or silver or gold all these
things that prevent corrosion that means
it can be protective if it in fact in
your refrigerator also you can see the
parts of the refrigerator and
electroplated so most of the time why do
we do electroplating it is done either
for decorative purpose so that it looks
good but so in order to look good it is
electroplated with metals which are good
to look at for example gold silver
platinum and in some cases it is for
protect protection so that the metal
which is present inside that do not get
damaged when exposed to air or water for
a long time so that is when we do it to
clean it with metals like chromium or
copper or nickel so based on this let us
see want how do we define electroplating
so it is a process of coating a metal
surface with another method for
protection or decoration by means of
electricity and that is where the demons
electroplating electro means electricity
with the help of electricity what do we
do we create a plating of one metal over
another metal so how we like to how
electricity plays a role in this process
that is what we will see in the next few
slides that big presence of electricity
only this process of electroplating
takes place now this turns out to be
extremely useful adding a lot of things
and as I was telling so some of the
advantages of electroplating act can be
used for decorative purposes like the
gold and silver plated jewelry and a lot
cheaper than the solid items prepared
from these expensive metals it is it
also provides protection against
corrosion or rust
for example metals like teen or zinc
they are not very attractive
we look for gold and silver they have
shiny appearance they look good but teen
zinc they do not look good but they are
protective in nature that is they do not
under they do not react with water or
air so they can't provide protection
against corrosion or rusting
so therefore many of the food containers
are plated with team so the team plated
food containers are they
they can't be stored very well even if
they're exposed to water they are like
very resistant so that means for
protective purposes steam or zinc can be
used increases the life of metals now
when a sink the outer thing out of OT
can prevent the prevent the rusting or
prevent corrosion of the metal so that
means you are also increasing the
longevity of the metal which is present
inside has the coating will not be there
in that case that object would have got
spoiled very soon right so that is also
the life of the metals increases in
expensive jewelry can be made there as I
was telling to stop so now we will talk
about a process called galvanization so
here what do we do is we do the process
of electroplating for the purpose of
protection so galvanization is the
process of coating a thin layer of zinc
on iron or steel now why do we do this
why do we coat an air of zinc on iron or
steel now there are a lot of substances
when island is used for their
construction so one of the very good
examples are the bridges so bridges need
to be really strong now Island is a
metal which provides a lot of strength
so because of this property of iron it
is used for the construction of bridges
but there is a disadvantage associated
with iron I am change to rust with water
it very easily react with water or air
and rusting happens resting is nothing
but appearance of reddish-brown
substances on top of island now rusting
over a period of time will destroy the
entire metal and the metal becomes weak
so the bridge also becomes weak over a
period of time so how can we protect
iron from being rusted so all that we
can do is we just give a thin layer of
some other metal which is resistant to
rusting and one such metal is zinc so
what do we do on the top of this item
bridge we give a thin layer of zinc now
zinc will not react with water or air so
therefore the item inside is well
protected by the zinc
so no rusting will take place at the
same time the bridge will be strong
because it is made up of a strong metal
like iron so that is galvanization so
this is how we see that electroplating
yeah it turns out to be extremely useful
in a lot of thank you please visit
www.payoor.com to watch more educational
videos with a better experience please
do not forget to Like and subscribe to
our YouTube channel for latest updates
thank you once again
effects of current part 10 is brought to
you by exam for your calm no more fear
from exam so now we got to know that a
couple of changes take place if the
solution methylene passes through it now
making use of this concept came up this
process of electroplating now this is a
very interesting process let me give you
some of the applications where you can
see the process of electroplating only
then you will feel like knowing more
about it now have you ever observe the
artificial jewelry like you have jewelry
made up of real gold silver diamond and
all in all such precious stones but you
also have some artificial jewellery
which are which is not made up of real
gold but it is made up of some other
metal but it is gold-plated so it is
made up of some other metal inside which
is not expensive but on the top there is
a thin layer of gold which makes which
gives it the appearance of gold so it
looks like gold but it is not wood so
that is it is less expensive also
similarly you have silver plated jewelry
platinum plated jewelry because all
these methods are quite expensive so if
you want to create a solid jewelry out
of these metals they are going to be
damn expensive so you want to get them
inexpensive you use some other metal
just on the top you give a plating of
gold or silver
similarly you would have seen a lot of
decorative items like the flower vases
which have a shiny appearance for the
top but actually inside there is some
other metal so if you want what you can
do is in case you have a very old flower
box at your home which is worn out of
certain places you will see that at
certain places it like it has been
scratched the upper coating is crashed
and you can see the metal which is
present underneath better so the
breadmaker which is present inside that
is not shiny enough that doesn't have a
good appearance but when it is plated
with some
so that that creating of the metal that
method is quite shiny and attractive to
look so that is why they are clicking
has been given so a lot of items get
cleaning off a different metal so they
see it is made up of one meter but on
the top of that there is a thin plating
of some other metal
in fact if you look at the parts of your
method make the car parts they also have
coating of other metals so
electroplating is deadlier also with
metals like nickel copper chromium so
they are used for electroplating
different car parts not only that the
wheel use of vehicles they have also
created with chromium so chromium is one
such metal which is the highly resistive
it is very protective in nature because
it a once you've got a nun some metal
aid the cheaper metals with chromium so
chromium first of all it is very
resistant it does not get dust it does
not get corroded so it doesn't react but
with air or water so that means in to
protects in the middle which is present
inside it also has a shiny appearance so
the look and feel is also good at the
same time chromium is very expensive so
if you actually want to three make the
entire medium out of chromium that is
going to be very expensive so instead of
doing that you make it out of some other
inexpensive metal and just give a thin
layer of chromium so that means it is
economical as well so these are some of
the benefits with chromium and that is
why in a lot of places like in car parks
the wheel rims not only that even the
bath taps in your bathroom you have seen
that the tabs and the showers and all
those things have a covering off or a
coating of a metal like chromium because
the same thing because when these
accessories are a part of your bathroom
so they are constantly in touch with
water so there are lot of metals get
corroded with water a lot of their
length if they are made up of iron what
will happen in presence of it exposed
being exposed to water for long time the
iodine can
our state so that is the presence of
rats just the reddish orange thing
appears on the item and that is how it
might fit damaged so a coating of
chromium or silver or gold all these
things that prevent corrosion that means
it can be protective if it in fact in
your refrigerator also you can see the
parts of the refrigerator and
electroplated so most of the time why do
we do electroplating it is done either
for decorative purpose so that it looks
good but so in order to look good it is
electroplated with metals which are good
to look at for example gold silver
platinum and in some cases it is for
protect protection so that the metal
which is present inside that do not get
damaged when exposed to air or water for
a long time so that is when we do it to
clean it with metals like chromium or
copper or nickel so based on this let us
see want how do we define electroplating
so it is a process of coating a metal
surface with another method for
protection or decoration by means of
electricity and that is where the demons
electroplating electro means electricity
with the help of electricity what do we
do we create a plating of one metal over
another metal so how we like to how
electricity plays a role in this process
that is what we will see in the next few
slides that big presence of electricity
only this process of electroplating
takes place now this turns out to be
extremely useful adding a lot of things
and as I was telling so some of the
advantages of electroplating act can be
used for decorative purposes like the
gold and silver plated jewelry and a lot
cheaper than the solid items prepared
from these expensive metals it is it
also provides protection against
corrosion or rust
for example metals like teen or zinc
they are not very attractive
we look for gold and silver they have
shiny appearance they look good but teen
zinc they do not look good but they are
protective in nature that is they do not
under they do not react with water or
air so they can't provide protection
against corrosion or rusting
so therefore many of the food containers
are plated with team so the team plated
food containers are they
they can't be stored very well even if
they're exposed to water they are like
very resistant so that means for
protective purposes steam or zinc can be
used increases the life of metals now
when a sink the outer thing out of OT
can prevent the prevent the rusting or
prevent corrosion of the metal so that
means you are also increasing the
longevity of the metal which is present
inside has the coating will not be there
in that case that object would have got
spoiled very soon right so that is also
the life of the metals increases in
expensive jewelry can be made there as I
was telling to stop so now we will talk
about a process called galvanization so
here what do we do is we do the process
of electroplating for the purpose of
protection so galvanization is the
process of coating a thin layer of zinc
on iron or steel now why do we do this
why do we coat an air of zinc on iron or
steel now there are a lot of substances
when island is used for their
construction so one of the very good
examples are the bridges so bridges need
to be really strong now Island is a
metal which provides a lot of strength
so because of this property of iron it
is used for the construction of bridges
but there is a disadvantage associated
with iron I am change to rust with water
it very easily react with water or air
and rusting happens resting is nothing
but appearance of reddish-brown
substances on top of island now rusting
over a period of time will destroy the
entire metal and the metal becomes weak
so the bridge also becomes weak over a
period of time so how can we protect
iron from being rusted so all that we
can do is we just give a thin layer of
some other metal which is resistant to
rusting and one such metal is zinc so
what do we do on the top of this item
bridge we give a thin layer of zinc now
zinc will not react with water or air so
therefore the item inside is well
protected by the zinc
so no rusting will take place at the
same time the bridge will be strong
because it is made up of a strong metal
like iron so that is galvanization so
this is how we see that electroplating
yeah it turns out to be extremely useful
in a lot of thank you please visit
www.payoor.com to watch more educational
videos with a better experience please
do not forget to Like and subscribe to
our YouTube channel for latest updates
thank you once again
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Oct 24, 2024 Last updated |
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