Master Synthetic Fibres & Plastics 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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In this lecture of Umang batch, Sunil sir is going to teach you the chapter-Master Synthetic Fibres & Plastics.
Topics covered in this lecture are-
•Classification of fibres based on source
•Classification of fibres based on structure
•Advantages of synthetic fibre over natural fibre
•Advantages of natural fibre over synthetic fibre
•Plastics
•5-R principle
There are many other important chapters that we are going to cover in upcoming videos for class 8. Stay tuned with PhysicsWallah Foundation.
▶️Complete CLASS 8TH - SCIENCE ONE SHOT Lectures - • Science - Class 8th NCERT
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• Recorded Lectures for Class 8th Students.
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• 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

[@zakiyarahmat1583]

1like 99.90% in exam

[@ramavtaryadav8156]

Congratulations bro🎉🎉

[@Apexfighter94]

Op bro

[@shishirmishra853]

Very Useful for those who are planning for NTSE and very nice explanation sir

[@MonitaMahato-dg5dj]

Hii

[@pw-123]

Nylon is the first completely synthetic fibre because it was marketed simultaneously in New York and London that's why it is named as nylon. ny stands for new York and lon stands for London

[@adityaraj5921]

No sir
Nylon-nyl was arbitrary and 'on' comes from the suffixes "cotton and rayon"

[@unal8120]

Ny means newyork
Lon means london

[@kshirjas1626]

The best teaching in the world is by the foundation of physics wallah!Any subject Any class Any topic in just minutes,A big applause for teachers.

[@pcgaming212]

yes i agree

[@niharikajha2081]

Rayon is also called as artificial silk
Thanku sir for your wonderful and super upper level explanation

[@sureshkumar4656]

Class 8 is lucky to have a teacher like Sunil sir. (He teaches so good ) 🤗🤗

[@armywalabanda5735]

She is dog

[@manjulavenkatesh3691]

Yaa

[@Bhavesh____x69]

sir apki shdi karva du kya

[@motortourk5391]

Yaa

[@user-xz6hv7pi9x]

❤❤❤

[@seeratr2998]

Explained in a very simple manner , I could understand every bit of it.
Thank you .

[@Princy82]

6:54 Rayon is also known as Artificial silk😊

[@saritamasih9396]

Yes, perhaps correct

[@Boeshi69420]

@@saritamasih9396 hi

[@shauryaranjangamerz]

Yup

[@VIKASHKUMAR96967]

🎉🎉😢😮😮😅😅😊😊😊😊😅😮😮😢😢😢🎉🎉🎉🎉😂😂😂😂😂❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤😂😂🎉😮😮😮😅😅😅😅😊😊😊😊😊😊😅😅😅😅😅😅😅😮😮😮😮😮😢😢😢😢🎉🎉🎉🎉🎉🎉😂😂😂😂😂😂🎉😢😢😢😮😮😮😮😮😮😮😮😅😮😮😮😅😮❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤​@@Boeshi69420

[@vandanasakhare9560]

And Viscose rayon 🙂

[@vishnudubey7644]

Class 8 is lucky to have a teacher like Sunil sir

[@rokogaming1234]

In this one shot, you cleared my all doubts really sir thank you so much this is possible bcz you teaches ver very good☺☺ And class 8th is very lucky.....

[@kabitadeka7009]

Thank you so much sir 😊🙏for such an interesting and understandable explanation...

[@jaihanuman9775]

Chemically ray resembles cotton, but it's appearance is like that of silk. So, it is called ARTIFICIAL SILK.

[@YuvrajSingh-pp7kl]

You are like a dream supporter teacher for us😊💚 thank you sir💙

[@EDI8ORZONE2083]

Thanku sir i have been cleared all of my doubts 👍

[@trainyourbrain407]

SIR your smile your explanation and ur voice these all 3 things makes our concepts clear. Thank you so much sir for this wonderful explanation

[@shreya6829]

He's really a good teacher and really have gr8 teaching skills .... Thank you for teaching us sir ❤

[@pandey804]

O sereyasle

[@rashivivekbhadauriya7996]

I love you shreya

[@sheetalawate-vb4zz]

​​@@rashivivekbhadauriya7996 and

[@ishantudy5694]

sir bohot acha lecture tha maja a gaya
thank you physics wala ki apne class 8 ka khol diya channel or mein abhi class 9 mein ane vala hu aur hamare march mein paper honge jis me full syllabus a sakta hai to mein revise isse kar raha hu again thank you

[@minetechz4808]

18:47 Sir Rayon wrinkles easily but aapne kaha ki rayon doesn't wrinkles????😢

[@KumarParth-pc4dc]

Sir if you want to go with only one type of clothes in which side do you want to choose natural fibres or synthetic fibres ? Sir this is a inconvenient question.

[@AdityaRaj-vd6lu]

another name that is asked by sunil sir of rayon is - artificial silk because it matches with the properties of silk

[@DEVIL-wj6cd]

It is my pleasure that I have chance to study with Sunil sir I am thankful for sir

[@anikapatel8218]

Sir you are explain more better than other teachers it's amazing ❤❤❤

[@bhajanranimishra6205]

Thank you so much sir this was the best chemistry video i have ever seen once again thanks a lot sir

[@rajeshbarela4878]

I love studying with him!❤ I litterly learn this!😍

[@AyushRaj-mt6md]

Same

[@kishanyadav2272]

Sir aap ne to chemistry me aag lga di eak full concept clear thanks a lot 😇

[@udaan_wallah01]

Ye meri pahli video Jo Maine 2 years pahle 17 January 2022 ko dekha tha. Yeh din mere liye golden day tha. Mujhe pata bhi ni tha ki ye sabhi teachers meri life me itna deep impact chhorenge . Bas lots of love and respect ❤️❤️ ❤️ to one and only emotions ka samagam Physics Wallah 😢😢😢😢

[@surendraprasadchauhan7061]

Rayon, also called viscose and commercialised in some countries as sabra silk or cactus silk

[@ShrutiSingh-ky2id]

6:58 Rayon is also called as art silk/artificial silk and shiny cotton

[@vijaysingh3905]

Hiii shruti

[@bandookdhari2009]

Thanks

[@JitendraKumar-hm2nw]

You are one of the best teacher of India I am very lucky to read from you sunil sir👍

[@AYUSHSHOTRTS]

Rayon is also known by names like viscose rayon and art silk in the textile industry

[@playeronegamezee]

Thank you so much you are the best teacher for class 8 Sunil sir u have taught me better Thant any teacher till now

[@im_ammarjeet]

We are so lucky sir becoz we have a teacher like sunil sir
Thanks sir

[@fghsdfhdgvdafg6316]

THANK YOU SIR FOR WONDERFUL EXPLANATION..

[@chetanpatidar580]

7:29 NYLON. As a fact it's name is also based on the first two city where it get its hype NY = New York and LON = London

[@ritunagar5617]

Viscucose sir or Artifical silk , as it has characterstics of silk. Bdw Thank you sir for teaching us so deeply .

[@shivsound1701]

Thanks sir for this amazing lecture

[@yrpsxd]

6:58 Rayon is also known as artificial silk or cheap silk

[@Bhataiyan.hker.]

Sir we are luvky to have a teacher like u thank you sir for teaching us in very excellent 👌 way 🎉🎉🎉🎉🎉🎉

[@aniketgaming7620]

Very good lecture by a good teacher like sunil sir (He teaches very good I can understand all concepts

[@seemskumari5274]

Wow sir aap bahut hi awesome tarike se padhate ho....

[@ayushagrawal2958]

very nice explanation by you and we enjoy the class.

[@gollapothuanusha80]

rayon is ued instead of silk and called artificial silk cause it is cheaper than silk and can make like silk fibre.......

[@DaaniyaMudasir-bb6ew]

Thankyou sir I am not having words to thank you sir,I understood everything easily by your fabulous teaching, once again thank you sir . Pw teachers best online tutors.

[@3Pranayama]

7:00 Artificial silk

[@axienope5023]

Sir your explanation is excellent ☺️

[@anithabanoth65]

Sir explaintion is to good yesterday was physics exam I listened this lesson and I got 8 marks question I wrrtien nice sir

[@manishachoudhary750]

Such a wonderful lecture!!🤩

[@swapnasodial404]

Yesss

[@pintudebnath5050]

Very detailed explanation thank you Sunil sir 🙏👍😊

[@swapnasodial404]

Yes

[@pggaming4900]

Sunil sir is the best chemistry teacher ❤❤

[@subhashpawar5903]

9:16 rayon is also known as artificial silks 😊🙂

[@bnbshan3250]

Regenerative fibre

[@avadheshyadav7741]

Viscose too

[@MODESSIRKHAN]

Yes bro artificial silk

[@vandanasakhare9560]

​@@avadheshyadav7741yes..

[@narenderchhabra8877]

It was an awesome lecture. Such a great information provided in single video . East or West physics wallah is best

[@amanpandey5289]

Thanks for teaching sir ,very nice style of teaching 👍

[@VotaryofKnowledge]

😐

[@classesbymonika]

Thank you so much sir 🙏
It was very very helpful

[@omsingh4254]

thank u sir for the bestest explanation ever. hats off to physics wallah❤👋👊🤛

[@SudhaGupta-ph7yy]

Sir i'm very lucky to have a teacher like you for this amazing lecture

[@najibahfatmah8547]

thank you so much sir you are really a great teacher😍

[@aarohiixe6036]

Amazing sir🤩 maza aa gya!!! Ek second ke liye bhi bore nhi hue

[@ishantsingh3475]

Hmm

[@06aribahaque11]

6:53 Rayon is also known as Artificial silk and regenerated fibre

[@kumarsuman-cp1sf]

Your teaching ways are so different❤❤

[@fabgirl1642]

Thank you very much sir. I had a doubt in semi synthetic fibres. But now I understood.

[@kpopqueen4848]

Fan girl hoga na ke fab girl ok

[@badshahgaming9735]

Thank you sir ☺️ for best explation

[@shouryakaoor1057]

Thanks sir for this lovely content 🎉🎉 maja hi aa gaya

[@Aesthetic13137]

Rayon is also called Viscose silk 😊

[@devildraculagamer2196]

Yes sr all doubts are clear from now i m always read scifrom you and from now sst as well i read from this channel before i read sst from digraj sir and now iread from this channel

[@devildraculagamer2196]

Mere sath bhi same hua h

[@Tripathi9496]

Sir I am class 9th i haven't studied this chapter in 8th..skipped it completely but now I want to study chemistry with you 😅😅....... really you are teaching amazing chemistry...🔥🔥🔥.. neevian 😁

[@khushiverma2818]

shristy 😃

[@introgamer3460]

Me too yarr I don't like teaching style of pooja ma'am in sprint batch😣😣

[@fablearner_ak]

@@introgamer3460 bilkul sahi bat boli tumne

[@harshdeepraj5]

Nice

[@aryan4815]

7

[@justme..1368]

Amazing session... thankyou sir. 🙏🙏🙏

[@mukeshchandmeena9834]

Nylon is the furst artificial prepared fibre and was first marketed in the cities of New York and London.

[@indukumari1395]

Rayon is commonly known as viscose and artificial silk

[@premanjandaimary4430]

Artificial silk rayon- semi synthetic, also known as man made fibre - obtained from wood pulp

[@ManishaYadav-mf4rh]

Thank you so much sir for this explanation you are the great teacher 💫

[@vedantkumar-uj8im]

thanks for teaching in a awesome way!!🙂🤓

[@gamingdeepu999]

Amazing session....nxt level

[@momskitchen51983]

NICE TEACHING SIR MY ALL CONCEPTS ARE CLEAR 😌

[@user-el8vs7dq5y]

Sir we are lucky to get teacher like you ☺️ who gives us detail information about every topic we are thankful for you ☺️🙂😊

[@freestylegamers886]

We are lucky that we got sunil sir 🙂🙂

[@sourabhverma5988]

These guys are blessed with such a glorious teacher

[@sonajha7092]

Sir I am new in this batch❤ and rayon is also known as artificial silk😊

[@abhi99yt69]

Now my doubts are more after see this video

[@abhi99yt69]

Sir always say that pariya bacho dil ka sacho in my word that sir ha madherchod sir ka ma ko Chado

[@user-yw8mn5gn7f]

0:57 introduction ....
1:35 starting

[@anmoldutta7376]

Thanks sir my all concept have been cleared

[@rambhadevi3814]

Rayon is also known by names like 'viscose rayon' and art silk in textile industry.

[@__raghav__45__]

And terecate also

[@jawedmahboob5092]

Rayon is also known as the artifical silk

[@amaxtakatak8643]

Sir mujhe pata h ki aap hamare liye der raat tak lecture banate ho ,aap hamare liye mehnat kar rahe ho ,aur ham exam ke liye mehnat karenge aur 1sr aake dikhayenge aur kahenge ki ham Sunil Sir ke students h 😅😅😅😊😊😊😊

[@user-gv1cm2tp6t]

8 class is very happy to have a teacher like sunil sir
(He is fantastic)

[@Akankshajhariya-rt2sv]

☺☺

[@ramsinghthakur3833]

Amazing teaching style 🔥

[@Creativity_by_Tanisha]

I haven't no words to express my happiness after see this video
Amazing 👍

[@rajeshvishawkarma7270]

Sir aacha padhate h hena

[@Mazid.islam21]

Y are looking so cute in youtube logo

[@GoatKuBeatsLowtama]

@@Mazid.islam21 my man looking for girls, instead concentrating on class.
Be sigma don't run behind bitches, u look good.

[@chiragsuryawanshi3093]

​@@Mazid.islam21 yes really she is looking so cute in TH-cam logo

[@sanjanashree8582]

Thanks sir jai pw my all doubts are clear unable to apericiate sir really i have cant express my happiness by writtiing thanks so much for your teaching❤ love pw❤ jai pw

[@Monika-or5qs]

The plastic which can be soft and bend easily on heating is called thermoplastic

[@shiprasingh2493]

Sir, Aapse padhke chemistry subject aur is chapter ki need aur importance pta chal rhi h aur seriously now I am loving chemistry.

[@Roopa.09]

Thank u soooooo much sir....💜💜💜😇
u clear my all doubt❣️💜💜

[@sairakhan300]

Kim namjoon

[@Roopa.09]

@@sairakhan300 our leader
Rm aka Kim namjoon💜💜

[@khatarnak_gaming_90]

Sir Rayon is also named as artificial silk because it has silk like appearance

[@anime_edits6396]

Your explanation is of very amazing thankyou sir 😊

[@tanmaytripathi4572]

Blessed to have an amazing and fabulous mentor like you ....sir...😊

[@AyushRaj-mt6md]

Very nice

[@Rayyan_Alam6]

Rayon is also known as Viscose & Artificial Silk.

[@devendarbisht8072]

Yes

[@himkumar4410]

Also known as cellulose acetate

[@AyushRaj-mt6md]

Nice

[@vandanasakhare9560]

Yes 🙃

[@dogesie]

When heat is passed through the wrinke due to heat the nearby area contracts due to which
The fiber gets plain... 😊😊

[@116fmuskanyadav8]

Thanks sir I am new to class 8 and getting nervous for board exam but when I hear about then I am challenging to board exam 😀

[@mayankff8496]

Sir rayon is also known as Viscose.☺️

[@chitralekhasingh3425]

Sir because of PW our concepts are 110 % cleared

[@neelambeniwal222]

Best teacher❤apne sare concept ache s clear krdiye ty sir..❤

[@deeptigupta7527]

We are very lucky because sunil sir completely clear my concept

[@HazikZarger-tr3yd]

Sunil sir this video is best thanks for this is a video ❤ thank you so much 😮 you are the best teacher 🙂 46:00