Class 10th Most Important Questions by Ashu Sir | Boards Complete Revision Most Expected Questions
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- Опубліковано 7 лют 2025
- #scienceandfun #ashusir #class10
Class 10th Most Important Questions by Ashu Sir | Boards Complete Revision Most Expected Questions
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📒Most Recommended by Ashu sir
Past 10 Years PYQS and 11 SQPs in a single book 👇🏻
Class 10- amzn.to/3ZZXkIn
Thanks 😊 Sir 🙏
🎉🎉🎉
🎉🎉
Vote for wake up with ashu sir!!!
@pratyushupadhyay29100 sure bro😊😊
Ashi sir OP📈
Ashi??
Ashi ??
Ashu sir op❤
Ashi .?😂...anshu sir opp
@@ContentPlatter-ew1mb anshu .?😂...ASHU
50:52 best lecture tha . Aur bhi chaiye sir 😊
42:32
1) C2H4 +H2 → (Ni)→ C2H6 , C2H6 + Cl2 →(U.V)→ C2H5Cl +HCl
2) CH3CH2OH →(kMnO4)→ CH3COOH +H2
VOTE FOR PART 2 >>>>>>>>>>>>>>>>>>>>>>>
Bhai insta nhi hai ye
In live
39:03 who else also solved it by using nth term formulae
15:03 2 difference -
1)Phenolphthalein turns na2co3 pink but not in nahco3.
2) reaction with cacl2, na2co3 forms white ppt caco3, but not in nahco3.
Na2co3+cacl2 -----> 2nacl+ caco3
Vote for part 2 live by Ashu sir
Homework → 1. Converting ethene to ethane by additional reaction (C2H4 + H2 (Ni)→ C2H6)
Then converting ethane into chloromethane by substitution reaction [C2H6 + Cl2 (sunlight) → C2H5Cl + HCl]
2. By oxidation reaction, in presence of acidified K2Cr2O7 or alkaline KMnO4
04:40 Correction »»»»
10I + 16H + 2MnO⁴ →5I² + 2Mn + 8H²O
15:13 mai to socha he nhi tha sir
Sir your explanation is so good ❤❤❤❤❤
31:37 we can remember through movie 'gangajal'
Sir according to gullugullu -
Na2co3 ---> Na2O + CO2
So how we can chemically defrenciate btw NaHCO3 and Na2CO3 ???
I have also doubt in this question
@@MAXMathematics-j9r Yes i think sir will solve this problem in his other lecture
@akshatbaghel03 let se
yes, i noticed that too. So, we can say that:
in NaHCO3- water is formed when heated as it decomposes into Na2CO3, CO2 and H2O
but when Na2CO3 is heated- it decomposes into just Na2O and CO2.
In conclusion, no water is formed when sodium carbonate is heated but there is formation of water when sodium bicarbonate is heated.
@@wykyk3057 Yes 👍👍
37:05 2.25 ohm
42:41
Homework,
CH2=CH2 +H2 + Ni (Catalyst) ---------->CH3-CH3
CH3-CH3 + Cl2 ------------>C2H5Cl + HCl
C2H5OH + alkaline KMnO4 (Catalyst) --------> CH3COOH
Dusre reaction mein catalyst nahin hoga😅
Galat hai beta tumhara .....
Bhai alkaline KMnO4 oxidizing agent hai catalyst nahi
@@RiyaVerma-v1g oh! thanks a lot. I appreciate it .
@RiyaVerma-v1g ha malum hai usko baap Ko maat sikha
15:20 sir sodium carbonate on burning give sodium oxide and co² sir please clear the doubt
Yesss doubt
Sir please 2nd part lekar ana bhot help mili iss video se
30:45 sir I thik saturated hydrocarbon can burn with blue aswell as yellow flame it mainly dependeds upon the oxygen presence for eg a saturated hydrocarbon
In the lack of oxygen may burn with yellow flame ,BTW thank you sir for osm content and pls correct me if iam wrong thank u ❤❤❤
18:08 it goes through neutralization because the naoh is basic and CO2 is acidic..
46:22 iski to linear equation bn skti hai
x+y=10
1/x+1/y=2.4
Now solve
Quadratic banegi bhai
Dono nan skti hai@@Piyushgoat01
sir ji 15:29 pe na2co3 ko agr heat krenge toh na2o aur co2 aata hai
plz jldi reply kriyega confusion hai????
btw love your these type of videos ❤❤
Thank you for teaching us sir ❤❤❤😊😊😊
Sir last second question unique or easy tha maza aa gya iss session m aap please physics k aur zyada is tareeke k session karao.😊
37:05 ans is 9/4 ohm
Kaise please explain
3 + 3 + 3 = 9 (bcoz of series) so , 1/9 + 1/3 = 4/9 (bcoz of parallel) 4/9 = 1/R , R = 9/4 ohm
2.25 om
Hats off to Ashu sir, Such a wonderful set of questions..loved it sir, your dedication is truly seen in your videos...Thanks a lot for being a teacher ❤
Please 2nd part😊😊
17:25 👍🏻👍🏻👍🏻
25:18 Amphoteric Oxides
15:26 sir but when we heat sodium carbonate it also gives carbon dioxide gas and sodium oxide ... Told by Google ... Reply please double ha ❤❤❤
No
Yes ur right
yeah he made many mistakes here and there for eg: metal oxide+C= metal +CO not CO2
Board ki kasam jis na subscribe nahi kiya wo exam mai fail💀💀💀
42:21 By addition reaction in First case we get ethane in presence of catalyst like nickel and further on we get chloro ethane by subsitution reaction of ethane in presence of uv light.
42:43
In second case by oxidation process of Ethanol in presence of acidified Potassium dichromate or alkaline Potassium per magnet we get the ethanoic acid . 😊
Cant you just add hcl in ethene directly to get chloroethane
Sir sodium carbonate ko heat krne par carbon dioxide release hoti hai
Na2CO3 +heat ---‐-->Na2O + CO2
Part2 chahiye but jyada questions rakho sir please ❤❤❤❤❤
sir in 16:15 when sodium carbonate is heated u get Na2O and CO2. So how do we solve the question
Sir ❤❤ you teach very clearly
37:06 HW Ques
9/4
MINE ALSO
Sir kya app magnetic effects of electric current ke sarre topic cover kr skte h bcuz mere boards me sab kuch ayega electric motor, electro magnetic induction, electric generator etc
Sir very good explanation ... Pls bring part as a live session 46:05
16:12 "aapko wo milky kardega" 😂😂
@50:42 2. longer metal strip in weak base
15:25 Na2Co3 ----- Na2O + CO2 banega
To fir dono me difference kya h 🥹
😂
Heat Test:
1. Procedure: Heat samples of Na₂CO₃ and NaHCO₃ in separate test tubes.
2. Observations:
Na₂CO₃: Does not decompose on heating at standard conditions.
NaHCO₃: Decomposes to form Na₂CO₃, CO₂, and H₂O:
2NaHCO₃→Na₂CO₃+H₂O+CO₂
3. Inference: The evolution of gas upon heating confirms the presence of NaHCO₃.
Note: Sodium carbonate (Na₂CO₃) can decompose, but this happens only at very high temperatures (above 850°C). Under normal laboratory conditions or during heating in a test tube (as per CBSE Class 10), sodium carbonate does not decompose appreciably.
Bhai woh bhot zyada temperature pr hoti hai like some 400-500 degree Celsius pr
Sir mera doubt tha ki alcohols ko dehydrate karte h heat provide karte h to alkene me convert ho jata just in the case of ethanol to waise hi agar metanol ka dehydration possible h?
Agar possible hai to konsa product banega? Methene to nhi banega kyonki aisa koi compound exist nhi karta
15:09 kya hum water bhi add kar sakte h kyonki sodium carbonate water molecules ke saath attach hogar washing soda ke crystals bana dete hai. To jo bhi crystal produce karega vo sodium carbonate hoga.
Kya iss tarike se sodium carbonate Or sodium bi carbonate me differentiate kar skte hai??
I hope you respond to me soon and clear my doubts.
1Q
Methene(CH2) + H20 product me ayen ge
To dehydration of methanol possible he
Methyne nahi bane ga wo exist nahi kar ta
CnH2n hota he general formula alkene ka C1 H2*1 =2 so CH2 (methene)
Q2
Nah bro
Sodium carbonate to bicarbonate me convert ho jai ga water add kar ne se or agar extra water add ho gaya to wo bhi washing soda ban Jai ga
I am 80% confident what I said is true
Sir but Na2CO3 Also gives Na2O and CO2 on decomposition then how can we use this factor? Shouldn't we use H2O as a factor as it is not given in the reaction of Sodium Carbonate but is given in Sodium Bicarbonate?
Bhai bicarbonate wale reaction mei salt water aur co2 Banta Hai yeh general formula hai
@@deadlyghost4021 Haan but jab sodium carbonate decompose karta hai tabhi CO2 and salt banta hai toh CO2 dono mei produce ho raha hai
23:22 Amphoteric oxides-AL, ZN,SN
39:05 - 39:10 💀💀
If you know you know
;--;
39:00 ye wala maine ap se kra
Yep aur agar ye question maths ke paper me aa jae to badhiya
Vote for part 2 ....
amazing lecture...... thank you sir
37:21 9/4 Ohm
you are right 👍🎉
50:37 sir
2
Best laga aur chahiye 51:09
50:35
option 2
longer metal strip in weak acid
loved the session sir
Thankyou so much sir you help me a lot please aise or session laye app ❤😊🖤
Video was amazing
Plz sir part 2 in live
31:01 ya question mera half yearly ma aaya tha sir🎉
36:55 sir the answer is 2.25 Ω
23:23
answer-zno(amphoteric oxides)
Undekhe and anokhe😮 swal
Thanku sir😊
42:27 1st answer is
C2h6+cl2=ch3ch2cl+hcl
15:50 sir pr jb hm na2co3 ko heat kenge tb bhi to co2 niklega ???
46:36 live session especially including magnetic effect of current please
39:48
Part 2 live me please 46:55
27:00 sir upar wale bulb se kuchh to resistance bana hoga n. Hm usko puri tarah neglect nhi n kr skte h .
39:31 hame padak nahi padta ki jamana kya kahta hai 😂😂 39:30
39:00 sir ye AP ka sawal hai
a=78 d=14 find 5th term of AP 😂
9/4 ohm 36:59 37:04 37:07
46:39 part 2❤🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹
50:52 best lecture sir aur bhi chaiye ab ki bar physics chemistry and biology ki seperate 30 undekhe sawaal leke ana aur m chahti ho ki ab sare subjects ke liye series le ke ayo
Good evening sir 😁❤❤
@23:35 amphoteric oxides
52:55 2
At 44:30 assertion and reason question
The krebs cycle is spelled wrong it is not
Kerb cycle ❌
krebs cycle✅
😮😮 17:56
38:20 sir isse AP se solve kr skte the ky
50:38 Ans: 2nd
19:37 Sir ye question as it is mere Term - 1 exam me aaya tha in MCQ with the figures of these two plants....mera Galat hogy tha bcz mujhe pta hi nhi tha they are the good observant of CO2.
Thank you so much sir for this great session i really liked this sesssion . Sir you are the best teacher ☺️👍
vote for part 2,3💯💯
39:04 😂😅 39:04
Next part please 🥺
sir calcination me presence of oxygen me heat nhi krte ? 12:12
SIR , CAN YOU PLEASE MAKE A SAME VIDEO FOR MATHS
23:28 amphoteric oxides
😊
Physics in theory 🤡🤡 ,, physics in numericals ☠☠☠
Kuch nhi h numerical bhi
Chemical ke numerical isse achhe hote
16:20 sir if na2co3 burns it will get na2o and co2 so how it is different
Yes iska ans hoga ki na2co3 strong base hai toh usma phenolpthalein indicator mei pink colour aa jayega aur nahco3 weak base hai toh usmei colour slightly pink or colourless rahega.
need more video like this
39:01 🌚 aur 14 fir aur 14 🤫
Like for part 2
But sir Na2CO3 heat karne par Na2O+CO2 deta hai
Yes bhai mei bhi wahi scha rha hu ki ashu sir ne co2 release nhi hoga kyu bola
Part 2
Good evening Sir 🙏
Ones more ones more❤️
17:34 👍
36:42 mei two adjacent points ke beech ki resistance toh directly diagram se hume 3 ohm pata lg rha h.... Toh 9/4 ohms kaise aa rha h?? And hum un dono points se line kyu kheech rhe h??
❤❤
Sir ek class recorded carbon and its compound ke important reaction ke uper bannaye
❤sir vertex of square me net resistance hoga 9/4 ohms
31:38 ye q mere preboard me aya tha
Sir please konsi book se liya h bta do please jisse me padh ke top kr sko 😢😢
46:41 part 2 pls 🙏