Master Metals and Non-metals in One Shot | Chemistry - Class 8th | Umang | Physics Wallah
📝 For complete notes of Lectures, visit Umang Batch in the Batch Section of PhysicsWallah App/Website.
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▶️Complete CLASS 8TH - SCIENCE ONE SHOT Lectures - • Science - Class 8th NCERT
In this lecture of Umang batch, Sunil sir is going to teach you the chapter Metals and Non-Metals.
Topics covered in this lecture are-
•Properties of metals and non-metals
•Facts to remember about metals
•Uses of some metals and non-metals
•Reaction of metals with oxygen and water
•Activity series of metals
•Corrrosion
and some questions for practice.
There are many other important chapters that we are going to cover in upcoming videos for class 8. Stay tuned with PhysicsWallah Foundation.
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NOTE: This batch is completely FREE, you just have to click on the "BUY NOW" button for your enrolment.
🔴 Details about the batch -
• Recorded Lectures for Class 8th Students.
• PDF Notes of each Lecture will be available on the PW App.
• Weekly Lecture Planner will be uploaded on PW Foundation Community Page.
• Classes will start from 10th January and we will cover the whole syllabus by 10th March.
🎦 Eight Lectures per week will be uploaded.
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#Science #Class8 #Umang
Пікірлер: 4 300
Who is watching in June and July 2024
Alluminium wire is used in high power supply rather than copper for some reason like it is less costly than copper and in 1 kg aluminium a very long wire can be made but in 1 kg of copper the wire can be made is shorter than the alluminium wire.
Any Rohit Sharma fan attended
@prabakarshukla1208
Ай бұрын
45❤❤❤
@Cuberdanger
24 күн бұрын
45❤❤❤❤❤❤
@gaurikamishra1764
23 күн бұрын
❤❤
@Cuberdanger
18 күн бұрын
@@gaurikamishra1764 hi
@user-hy2si1rj7s
10 күн бұрын
Yes 👍
after watching the entire video i just now realised that is it for 8th grade.. but I am in 10th grade 🤦🤦🤦🤦🤦
@rehanayasmeenyasmeen9654
10 ай бұрын
Really you watched the entire video thinking that the video is for 10th
@bhavanisingh8991
3 ай бұрын
Ohh so sad I am in 7th grade and I am taking 8th grade syllabus.
@modhumitapal6545
Ай бұрын
Wtf
@FALLEN_SLAUGHTER
Ай бұрын
@@bhavanisingh8991 me in class 6 and now i had completed 8th syllabus ☺☺
@Asher_710
27 күн бұрын
@@FALLEN_SLAUGHTER nice i am also in class 8th complete 9th syllabus just revising
Copper is the preferred wire for your home over aluminum because of its ease of use and ability to effectively conduct electricity. It is more stable, durable, and performs better than aluminum wires. Copper is known to have better Conductivity than Aluminium.
@sonam_edits8655
2 жыл бұрын
Yes
@user-iy8md9su2n
2 жыл бұрын
Yes
@HARSHRB
2 жыл бұрын
True
@simi2331
2 жыл бұрын
Yes
@tomtoxx
2 жыл бұрын
No! it is because copper is more ductile than silver that cause more stability to fit in corners
Hello juniors 🙂 Class 8 ko Acche se padhna best se kyu kii 50-75% Topic class 10 mai cover hoga Specially :light chapters.... 🙂 NOTE: Maine toh Bhut mazje kiye the 8 mai 10 mai 2X mehnt krna per raha hai
@shreyanshisanodiya5684
2 жыл бұрын
😊
@harshadwaghmare7448
Жыл бұрын
Thanks Broo 🤗🤗
@Lord_EDITZ632
Жыл бұрын
Tnx
@manjeetyadav3050
Жыл бұрын
Thanks bro may God fulfill your dreams
@arungill687
3 ай бұрын
Thx bro❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤😂😂🎉😢😢😢😢😢😢🎉🎉🎉🎉
Who was watching in June
@user-up2qu5bb4s
Ай бұрын
mai bhai
@sumanpal2130
Ай бұрын
Me too 😂
@SuhanaKumari-hs6ic
Ай бұрын
Me too 😂
@ManojKumar-ej6ik
Ай бұрын
Me too😂
@FALLEN_SLAUGHTER
Ай бұрын
mai bhi hacking sikthe sikthe time nikal gya apr mai 6th mai hu no tetion
Tensile strength of copper is twice that of aluminum, which makes it ideal for electrical conductivity at home. On the other side, it is not a good choice for high voltage lines. This is because high voltage line transmissions involve lots of bending of the cable when doing installation.
@3bgamer-ln7lz
3 ай бұрын
❤
You way of teaching is awesome. Thank You Sunil Sir.
I saw first time such a teacher who teach with questions 👍👍👍👍
@shayankhan9843
Жыл бұрын
how
@dhruvesharma8466
Жыл бұрын
PW ALL TEACHER ARE BEST
@seenadevi8597
4 ай бұрын
No
@vipulkumarrathi5818
4 ай бұрын
Sir 9 ka batch kab sa suru hoa ga
What knowledge able teacher.god bless you
Though silver is a very good conductor of electricity but still that is not used in electric wiring primarily due to its cost. It's very expensive compared to the widely used wiring material copper. Another reason for not using silver is that , it oxidizes easily and tarnishes when it comes in contact with air
Sir now you become a favourite teacher of all students of chemistry..
@Nabhay.ff.
Жыл бұрын
Hii
@sumitboss5311
Жыл бұрын
Are you a teacher , if you are, I thing you become jaleous of him
@dsr678
Жыл бұрын
I love you❤
@annuvideo214
Жыл бұрын
Sala
@kaberirana1559
Жыл бұрын
Hi hello
Sunil sir literally stood and thought us continuously for 1 hour and 24 minutes, respect to sir
@nethervarient7243
Жыл бұрын
he did take rest because pf cuts and edits in between but still it is a very good achievement also not being nosy but it is taught
@aneeksshorts2092
Жыл бұрын
No 1 hour 24 minutes and 1 second
@Beastbreather124
Жыл бұрын
@@aneeksshorts2092 say say [ chut*ye]
@abhinavvermaartist8468
Жыл бұрын
@@aneeksshorts2092 🤣
@samarthfree1835
Жыл бұрын
Alhak sir use to stand for 1 hour without fan and explain on white board
Sir , aluminium has a significantly higher specific electrical resistivity than copper.This difference is highly relevant for power cables.Aluminium conductor requires 56% larger cross-sectional area than copper for same current carrying capability.
@eagleeyeyt5690
9 ай бұрын
Hi, where are you from😊
Copper wire are not used insted Overhead alumiNium wire becasu its melting point is low so it can melt or if we use aluminium wire then our applinces does not get sufficient electricity as it has high resistance
Sir ...why is tin not present in the reactivity series of metals ?...and also some websites mention carbon in the reactivity series ......and sir how to remember this chemical reactions...for exams ?
17:25 ANS silver is better conductor of electricity but being expensive, is not used in making cable
@EagleAirInd
Ай бұрын
But also due to its Ductility.
because the melting point of copper is very low and in transformers there is high voltage so that's why aluminium is been used
Even though silver is a very good conductor of electricity but still that is not used in electric wiring primarily due to its cost. It's very expensive compared to the widely used wiring material copper. Another reason for not using silver is that , it oxidizes easily and tarnishes when it comes in contact with air.
He gives very amazing example 😊😊
Very impressive lecture by sunil sir experiment and chemistry I am from neev 2.0 but study 8th class basic chapters
@venkateshwarn
Жыл бұрын
High Respect
Outstanding explaination sir ❤🎉 Thank u so much sir for this explanation 😊
Happy teacher's day sir ❤
Sir concept crystal clear😊
@knownkiller7061
5 ай бұрын
yes bro
I am in class 10th and still watching Sunil Sir's Chemistry lectures because, literally i realised that there is no teacher like Sunil sir, Sir If u would teach class 10th, students can learn chemistry like a magic . BTW thank u so much Sunil sir.❤️❤️
@prince__7999
Жыл бұрын
Good bro
@Kanhawithtannu123
Жыл бұрын
Also me
@gamingkadost
Жыл бұрын
Bhai video tow Puri Dekh lai sir na kaha tha ki vo 10th mai bhi padhta hai 😂
copper wiers are use to manage low load of eletricity so it is used in houses but aluminium are used for high load of electricity, if copper wiers will use in overhead power cable then due to heavy load copper wier easily melt down that's why we don't use copper at the place of aluminium wiers .
Aluminum is a common material used in the construction of electrical wires.Unfortunately aluminium wiring is not as strong as copper wiring and it has a higher thermal expansion coefficient.....
That's like a Qualified💯 Teacher✅
@skshivamvlogs1234
2 жыл бұрын
Boka master hai
@skshivamvlogs1234
2 жыл бұрын
Sabse achcha teacher alakh sir
Really very satisfied with your way of teaching, detailed concepts out of NCERT....very very helpfull for those who wants to learn extra ordinarilly
@msdhoni.sr0748
Жыл бұрын
15:25
@gourimukherjee5556
Жыл бұрын
You are right
Thank You Sunil Sir For Making This Concept So Clear:)
Silver can't be used as wires or cables because they are very costly as compared to copper and aluminium wires..
@aradhyrai6819
28 күн бұрын
Cr7 siuuuuuuuuuuu any Ronaldo fan
Class 6 Draksha vats .Copper is used in house or for domestic use because it is cheaper in cost than aluminium and as effective as aluminium; it is ductile, durable and if any person by mistake touches copper wire in main power supply houses so they may get a high voltage shock.
Thank you so much sir ur way of teaching is great 😊👍
Sir the copper wire transfer electricity is high but the alluminium is cheaper than copper and can be transferred easily to far places
17:20 We don't use silver for wiring because it may not be economical to use silver for electric purposes. Also it oxides' easily when it comes in contact with air and it tarnishes.
🔴Aluminum is cheaper than copper and also it is light weight so they can use in outdoor. *We use copper in the house wiring because copper conduct electricity better than aluminium. Due to which power is saved so that money is also saved.* *copper has less resistance than aluminium* 🔴 *Silver is too costly so it cannot be used as wire.*
@HemantKumar-hm3cf
2 жыл бұрын
❤❤❤
@rishabhohri9909
2 жыл бұрын
Teue
@rosterboy6886
2 жыл бұрын
Right
@galaxyrider8823
Жыл бұрын
I think aluminium jaldi tot jata hai agar usko wire me bnaya jaye
@L._.7__YOUTUBE
Жыл бұрын
Silver is good conducter of electricity it is expensive and electricity go faster so it can burn wires
heating effect of electric current is seen more in copper than aluminum so copper is used in case of low voltages also because it has low melting point.
@38shivanshzalavadia6f6
Жыл бұрын
@wiweisi
3 ай бұрын
Bahut bhadiya babua kon sa class ma padtha ho babua 😂
@wiweisi
3 ай бұрын
A+b ka hole sq kya hoga babua
@jyotirmayeesahoo7981
3 ай бұрын
Km@@38shivanshzalavadia6f6
@shambhavibhardwaj-fj8fz
2 ай бұрын
U😅6y😅yy@@wiweisi
jis jiska kal paper hai jaldi se attendence do
@ganeshwarprasadsingh4745
4 ай бұрын
😅
@vibhasinha1206
3 ай бұрын
Paper over ha
@pratibhasingh503
2 ай бұрын
Ussse kya hoga
@renumishra545
Ай бұрын
Ha kal mera hai
Sir 🌷 I would like to thanky you for providing this masterpiece one shot for us as it is very useful for everyone in my school our chemistry teacher Don't explain the topic Clearly but instead of that he just read the chapter and translate it into Hindi but you made it crystal clear for me again thank you so much gurru jiii you are my favourite teacher ❤lots of love to you 💞
That "Sundar Kanya" Example was sooo good sir pura samajh aagya 😂💗🙏
@Mrstunt108
Жыл бұрын
Tere baaton se lag rha hai tu nalla hai
@TOXIC_HAPPY.
Жыл бұрын
Madarjaat ghosi sika
@Godsite120
Жыл бұрын
😂😂😂😂😂 bro real pura Nalla lol
@DaCritic.
6 ай бұрын
Girl..😂
@artikushwaha5077
6 ай бұрын
@@DaCritic. 😂😂🤣🤣
i like your teaching capacity .i am really happy for your teaching .
Sir can you give a full chart of physical and chemical properties of metals and non metals with its exception
Sir ne kitni acchi tarike se padhaya hai mein to fan hi ho gaya sir ka
You are fantastic,brilliant,genuine, gentle,and no words to express you sunil sir very nice teaching
Aluminum is preferred in overhead power cables because it is a good conductor, so it can transport current with minimal losses while also being lightweight enough to not need the large support structure
@mysteriesofeverything43
Жыл бұрын
Oooo
Bro i have an exam tomorrow and I’m watching this now😭 But i will still manage to get good marks because of physics wallah 🙂🙂
@user-rz5pd2tl1f
10 ай бұрын
From which school 🏫
@minivlog7172
9 ай бұрын
Hiii
@minivlog7172
9 ай бұрын
I love you
@ananyarathore3535
9 ай бұрын
bro exam kaisa gaya?
@jakedadug6830
9 ай бұрын
same here bhai
17:23 We can't use silver wire because it expensive while the copper wire is cheapee than silver wire Also copper wire is used in house as it is affordable n conduct better electricity than aluminum..
Meaningfull and great sir......thanks
Thank you so much sir u make the chemistry very interesting and easy for us..👍🙏
The conductivity to weight ratio of aluminium is better than that of copper
16:42 According to my knowledge so far amd NCERT CLASS 10 Science- Chapter-Metals and Non-Metals , Gold is the most ductile Metal
@kanaksingh6884
8 ай бұрын
Yes you are right ...gold is a most ductile metal because with 1g of gold we can make 2km long wire ....but don't know what's wrong with that
17:25 Sir silver would be expensive to use as wiring that's why we choose alternate metals like Copper and Aluminium
Sir u are the one of the best educator of PW
@ArbasanYgy
5 ай бұрын
Then what about ritik sir?
@PoojaSingh-rm1tk
3 ай бұрын
Ritik sir is best ❤❤❤
Sir hats off to ur teaching method ❤
17:19 we dont use silver wires even though it is the best conductor of electricity because it is an expensive metal so instead of using silver we use copper to make electric wires
Mazza aaya Thanks sir for teaching us for free!!
Copper is a good conductor of heat but we use aluminium at transmission lines The main reason is cost
I have one more trick of reactivity series potassium - please sodium - stop calcium - calling magnesium - me aluminum - a carbon - cute zinc - zombie iron - instead tin - try lead - learning hydrogen - how copper - copper silver saves gold - gold platinum - platinum helium - helium like me if you are agreee 👇
Nice lecture sir . First time I understand very well because of u sir . 😊😊
So much respect to you sir 😍
I understand whole chapter thank you so much sunil sir☺️☺️
Silver best electric conductor h or heat conducting ni h to isme electric conduction ka kya lena dena heat s????
You are great sir❤❤
Metals are generally good conductors of electricity. The conductivity of a metal is the ability to allow electricity to pass through it. Since aluminium is a metal with low resistance and good conductivity it is used in electrical wires.
@ramachandrabollur2915
11 ай бұрын
Then the copper is allso the good conductivity why it is not use
@tsgojas3181
11 ай бұрын
beacuse there are not many electrons moving in it @@ramachandrabollur2915
@nitinmaharana3706
10 ай бұрын
@@ramachandrabollur2915 because copper is harder than aluminum (aluminum is a soft metal ) and it expands a lot when over heated and it will be heated as it is a great conductor of heat and electricity .I think this may be the reason
@user-jr3ze3sy6e
8 ай бұрын
Noo
@user-jr3ze3sy6e
8 ай бұрын
The answer is aluminium conducts electricity with very high power.and if it will be used in home,the electrical appliances may blast or catch fire due to high power. And according to me this is the reason.😅😅
Q1 7:10 because copper is a good conductor of electricity so it is preferred in our home but almunium have lighter weight than copper so it preferred in wires on the poles
Sir we have an exam after 4 days plz make a short video based on electronic devices attached by remote control
Copper is preferred wiring for our home over almunium because of its ease of use and ability effectively conduct electricity and copper is also previous than aluminium
Silver wires are expensive in comparision to that of copper and aluminium. copper and aluminium also does a good job in transferring elctricity that's why we prefer copper and aluminium over silver.
In copper, Type of corrosion is tarnishing and A greenish layer named patina is formed.
Sir Jo alluminium hai uska weight Jo hai wo Kam hota hai jaise 1kg of copper jitna amount ka hoga utna ammount ka Alluminium hoga 0.33 kg agr hm Alluminium ke amount ko double bhi karde to bhi Alluminium ka amount hoga 0.66 joki 1\2 ammount of 1kg of copper ka hai ''sir it is the actual reason why Alluminium are not used in our home😇'' THANKS 👍
Thank you soo much sunil sir😇 You'r the king of chemistry. My favorite techer of chemistry ❤️
@xx_bhupendra_pal_xx4203
Жыл бұрын
Teacher ki spelling wrong hai
@manjuchoudhary3250
Жыл бұрын
@@xx_bhupendra_pal_xx4203 tum log wahi topper ho na Jo bas comments padhte padhte spelling check karte rehte ho......yaar feeling samjho.....😒take a chill pill
@Sushila8467
7 ай бұрын
@@manjuchoudhary3250sahi bola bolti band kr di sare toppers ki 😅😅😅😅😂😂 😊😊
@manjuchoudhary3250
7 ай бұрын
@@Sushila8467 😎😉backbench pe baith ke savage reply hi toh sikhe hai😄
aluminium wires is not used in house wiring because Aluminium has higher resistance than copper and needs lots cross sectional area in comparison to the copper and due to the resistivity they get heated and leads to electrical fires, And also due to it's light weight, which is a very important thing for transferring high voltage power.
epic line : Yeh apko Pata hone chahiye😂 vai the style of saying 😂 But literally very good explanation ❤
17:25 because silver oxygen se react karta hai
It was just an amazing experience to learn in this way with you. But please don't use red colour pen as we cant see whats written clearly. JUST EPIC EXPANSION
I have no words to pay you respect sir............!
Sir I have made a story for learning reactivity series Prince (P) Sharma (S) Can (C) Make (M) A (A) Zoo (Z) In (I) which Tiger (T) Lion (L) Hen (H) Chicken (C) Monkey (M) Sleeping (S) in a Great (G) Place (P)
He give us very amazing example 😄
I'm a class 10th student, but still here because others teach us chemistry but Sunil sir makes us feel it 🔥🤍
@shoggy8467
Жыл бұрын
Bro if you are from class 10 why are you learning 8th grade chemistry 🤔
@pranitjain6106
Жыл бұрын
@@shoggy8467 It is not compulsory that only grade 8 students can watch he must be here to revise his concepts..
@user-cv1xw3yo8e
Жыл бұрын
@@pranitjain6106 makes soo much sense
I have a MATHS KZread channel named as "Maths Ki Ghanti". Your way of explanation is the best one. Thanks to share knowledgeable content 😊.
1:04:47 sir barium is missing!!
PW is not a company It is a Emotion 🔥🔥
@studyrestudy
Жыл бұрын
Bro a nahi an hoga
@be.mewcury
Жыл бұрын
@@studyrestudy engrez ke aulad sorry don't take seriously.
thanks sir for the most most most learnable and interesting class
@ashishsalvi5140
Жыл бұрын
Batch le le bhai idher kyu aaya he
18:5 sir made perfect circle
17:17 we don't use silver as wire because:- 1. It's expensive 2. copper is an excellent conductor and is much more abundant and affordable than silver. It strikes a balance between performance and practicality.
17:22 Silver Wires are not used for making wires as silver is a very rare, hence costly metal. Also, silver is on the heavier side of metals.
We don't use silver wires at home beacuse it is very expensive metal but a really good conductors and the second reason is due to its reactivity
@piyushpunjal3438
Жыл бұрын
And the not for theif😂😂
@piyushpunjal3438
Жыл бұрын
Hi
@piyushpunjal3438
Жыл бұрын
@Harshul who are you
@booskies
Жыл бұрын
@@piyushpunjal3438 stranger duh 😂
@diptydoley2028
Жыл бұрын
Hi diksha your answer is correct I think
You are great teacher sir😊😊👍👍
I really loved your explanation it was too good 😊
Sir what a entry 😇😇 Aapka introduction style is awesome 👌🏻👌🏻 Sir entry op 🙃🙃 Starting me hi maja aa gaya 😎😎
Thank u sir because of you I scored 79/80 marks 🎉🎉 in science thank you sooooo much
Excellent teaching sir Ji 🎉❤❤
💯💯 qualified teacher.....and we luck that we are study from chemistry king🥀🥀💯💯🤟🤟
Sir you are best for all
Since , the silver is costlier than copper and almunium We can not make wires with them or else wire would be costly also.❤❤
Sir because of the aluminum , its wires tend to overheat because of its disposition . When there's continuous contraction and expansion , the wire connections would loosen and cause the wire to creep out under the screws causing circuits to arc .
@user-ul8xn1jb8q
9 ай бұрын
thanks this helped a lot
Copper is a preferred wiring for the our home over aluminium because it is of use and ability to effectively conduct electricity it is more stable durable performs better than aluminium wires . Cooper wire has low level of resensitivity and also good conductor of electricity. Aluminium has 61% of copper conductivity . The cross section area of an element in conductor should be 56% largest then copper to carry the same cutting the need of to increase the thickness of aluminium wire restrics it used in many appliance such as small motors and automobiles. It is also cheaper than copper.
Because aluminium have more resistivity than copper . So copper wire is more efficient than aluminium in home affairs. In respect of over headed power supply the aluminium wires is more durable than copper and many people stole the copper wire and sell it
As the electricity passes through the wire both of them do the same work but also a heat is being generated and copper cannot withstand the heat which aluminium can.