Best MCQ Class 8 Combustion and Flame Full Chapter | Class 8 Ncert Science

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We use different kinds of fuel for various purposes at home, in industry and for running automobiles. Can you name a few fuels used in our homes? Name a few fuels used in trade and industry. What fuels are used for running automobiles? Your list will contain fuels like cowdung,
wood, coal, charcoal, petrol, diesel, compressed natural gas (CNG), etc.

[@mcqncert]

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[@reja4rock515]

Mc

[@ravichandra725]

Your channel is the best example for mcqs
BEST CHANNEL EVER WATCHED!
THANK YOU SO SO MUCH SIR🙏

[@Typagurl.makeuhhwannadream]

9:18😊

[@ranjitverma933]

Ignition temperature jyada ho jayega na jb pani kisi substance pr dalenge..

[@pranjallx_pvt]

Haa

[@sports-squadron]

Nhi Bhai water dalne se app colling karte ho aur ignition temperature Kam so jata hai😊

[@calligraphy_4you]

Ignition temp agar kam hoga to kam temp pe burn ho jayega iska matlab ignition temp zyada ho jata hai water se only wood and paper fire​@@sports-squadron

[@maheshprasad7975]

Yes

[@AbdulSamad-zn3vk]

Nhi

[@Avniakshat]

3:40 sir for making matchstick surface red phosphorus is used

[@sahilarora5142]

Yes

[@shaurya2.o327]

Thank-you sir very much 😊

[@goutamuda6763]

Sir you are great teaching 👌
❤️ But Jada se Jada internal mcqs
Samajayo
Thanks for teaching 😊

[@PawanKumar-xi9gs]

3:40 sir matchstick banane ke liye to red phosphorus chahiye hota h na.

[@sahilarora5142]

Hai

[@BhanwarLalSharma-jg6gm]

Bhai wo pahle hota tha ab white hi hota hai

[@arshdeep_2805]

Nhi, 🙂
Combustion ke liye white phosphorus use Kiya jata tha pehle... But it was very dangerous for users and makers... So , white phosphorus was banned 🚫👎... And they started using red phosphorus.... Matchstick me head pe antimony trisulphide and potassium chlorate hi use hota hai.. and Jo side pe strip red ♥️ colour ki hoti hai .... Usme red phosphorus aur tiny glass hota hai... Pahle white Phosphorus friction ke Karan jal jata tha... Lekin abb
Red phosphorus potassium chlorate se react hota hai jiske Karan thodi si heat banti hai jo ki antimony trisulphide ke sath react karke combustion karti hai.
This took me soo long 😅... Tomorrow is my exam all the best 👍

[@shabirkhan7597]

Thank u sir 🎉

[@arshdeep_2805]

Thankyou sir, your videos help me so so so much 🎉 🙏

[@Lifemine12]

Super sir thank for this video from you many children got lot of help

[@sadhna9047]

Very helpfull video😊
And also added assertion and reasoning.
I suggest assertion and reasoning should be in every video.

[@AbdulRafiqRafiq-g6r]

Lowest temperature at which fuel catches fire known as ignition temperature

[@अवधेशपंडित]

thanks sir 🙏🙏🙏🙏👍👍👍👍👍👍👍👍👍👍🙏🙏🙏🙏🙏🙏🙏👍🙏🙏🙏👍👍👍👍👍👍👍👍👍

[@Motivationalquotes_Priyanshu]

Sir CHS entrance mcq please

[@shobashobasgplcrp9658]

Thank sir

[@Sarojdevi12324]

First comment

[@goldmemovie]

Thanks sir

[@Lalisamanoballysm]

Thensk

[@अवधेशपंडित]

so, very useful video

[@shaurynancysingh839]

Nice explanation 👍

[@Sunitameena-hu6dc]

🎉

[@vlogsbyavni4215]

👍

[@RajuDas-j5u]

🎉🎉

[@anupkumarthakur8297]

❤😊

[@RRPS-or8cx]

Question 7 is wrong.
In making of matchsticks,Red phosphorus is used,not White phosphorus.*white phosphorus catches fire in room temperature in summer"35°c".

[@MDFarhan-d4f]

Thanks sir 100me 99lane keep liye

[@AshishKumar-nq8bj]

Thank you

[@XtZZZzzziiiiiiii]

Sir in question no 1 it can be all of the above right?

[@zayanhindigaming4247]

No check on Google

[@AamirKhan-dc1sk]

NIce

[@sabinayasmin8007]

Yes

[@sabinayasmin8007]

Nice❤❤

[@maanjain2041]

33 ans was wrong
It should be A not B 26:00

[@aany........07]

Sir s. chand and other knowledgeable class8 science Mcq 🙏 sir

[@mcqncert]

Ok sure

[@anuwarabegum3019]

B

[@anuwarabegum3019]

D

[@Shortshishorts123]

Please make new video 😊❤

[@mcqncert]

Ok

[@makardhwaj1164]

Kn esi video exam k 10m phala

[@shameemmalik1110]

Sir i have a doubt... If LPG stands for liquified petroleum gas it also can be liquid fuel as it is liquified?? Plz answer tomorrow is my exam if anyone other knows can also tell
Thanks🙏🏻

[@mcqncert]

Yes it is liquid when inside the cylinder but when we use it it converts in gas form..
So we will put in Gas form only.

[@shameemmalik1110]

Ok sir.. Thank you🙏🏻

[@arpnagarg5240]

i have the same doubt thankyou sirr😊​@@mcqncert

[@Prince-de5px]

Sir sanik school ke liye Mcq Pls. 🙋🙏🙏😖😖🙅🙅🙏class9

[@mcqncert]

SAINIK SCHOOL ENTRANCE MCQ: th-cam.com/play/PLqL8x8BtIUaSf1B4EEblSHrL6wTt9ueFJ.html

[@Prince-de5px]

OK sir😎😎😱😊😀😀

[@kbmanjunath3773]

Tuuuu est question torustirri nam mam aakadku niv itara estond question torsadku nam kai bidogadku tuuu nim makke benki aaka

[@attidevi2146]

Best sir

[@ayucrickeditor]

Bhaiya ji LPG is liquid fuel.
NCERT मे साफ - साफ शब्दों में लिखा हैं।

[@zayanhindigaming4247]

Izzat se baat kar

[@SeemaWatti-dv2hv]

Sir -9.18 is 😂

[@SeemaWatti-dv2hv]

Khane wale nhi bname wale

[@bookworld9871]

💋💋💋💋💋💋

[@sahilfreefire6848]