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
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.
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
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.
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 ❤
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
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 . 😊
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?
📒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 😊
Physics in theory 🤡🤡 ,, physics in numericals ☠☠☠
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
Vote for part 2 live by Ashu sir
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
18:08 it goes through neutralization because the naoh is basic and CO2 is acidic..
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
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 👍👍
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
36:55 sir the answer is 2.25 Ω
Please 2nd part😊😊
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
15:13 mai to socha he nhi tha sir
Sir your explanation is so good ❤❤❤❤❤
25:18 Amphoteric Oxides
04:40 Correction »»»»
10I + 16H + 2MnO⁴ →5I² + 2Mn + 8H²O
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
Sir sodium carbonate ko heat krne par carbon dioxide release hoti hai
Na2CO3 +heat ---‐-->Na2O + CO2
46:22 iski to linear equation bn skti hai
x+y=10
1/x+1/y=2.4
Now solve
50:40 answer 2 longer metal strip in weak acid
39:00 ye wala maine ap se kra
Yep aur agar ye question maths ke paper me aa jae to badhiya
42:27 1st answer is
C2h6+cl2=ch3ch2cl+hcl
37:06 HW Ques
9/4
MINE ALSO
39:05 - 39:10 💀💀
If you know you know
;--;
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.
Video was amazing
Plz sir part 2 in live
23.25 ampoteric oxides
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.😊
37:21 9/4 Ohm
you are right 👍🎉
yes sir part 2 chahiye live
23:23
answer-zno(amphoteric oxides)
31:01 ya question mera half yearly ma aaya tha sir🎉
50:38 C longer metal strip in weak acid to make reaction occuring for along time
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 ❤
39:01 🌚 aur 14 fir aur 14 🤫
Part 2 live me please 46:55
46:36 live session especially including magnetic effect of current please
Thank you for teaching us sir ❤❤❤😊😊😊
23:25 amphoteric compunds
50:35
option 2
longer metal strip in weak acid
loved the session sir
46:39 part 2❤🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹
23:28 amphoteric oxides
😊
SIR , CAN YOU PLEASE MAKE A SAME VIDEO FOR MATHS
Sir These questions are Ekdum crazy..... Amazing effort sir!!!
6:12 sir ye question me (1) and (2) only hi aayega kyuki 3rd vale option me oxidized agent likha hai
amazing lecture...... thank you sir
Radha Radha Sir
Nice questions... Preboard ke liye kam ayege 🤘🤞
Sir aap 80:20 rule board 2025 keley banao pls
Sir aur karwa do undekhe ques
46:41 part 2 pls 🙏
Ones more ones more❤️
16:12 "aapko wo milky kardega" 😂😂
27:00 sir upar wale bulb se kuchh to resistance bana hoga n. Hm usko puri tarah neglect nhi n kr skte h .
Sir 10th is not hard but when we read concentrately
one numerical session for class 11th
Part. 2. Plz 🙏
SIR AMAZING LECTURE
SIR LIGHT AND MAGNET PE BHI LECTURE CHAHIYE
Part 2 must needed...😭
With bio
23:24 Amphoteric Oxide
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
Sir All important topics of science please sir
37:06 9/4 ohm
Good evening sir 😁❤❤
Sir ek class recorded carbon and its compound ke important reaction ke uper bannaye
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
need more video like this
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 aur unique questions leke aayein...
Please make pt 2 sir.
Part 2 required 46:26
50:38
Option 2
39:31 hame padak nahi padta ki jamana kya kahta hai 😂😂 39:30
23:20 amphoteric
Sir i am the biggest fan of your
25:31 ampotheric
43:55 sir but normal air me bhi to co2 present rehta Hai
Sir part 2 chahiye ❤❤
Part 2...This was so useful 🫶🏼
9/4 or 2.25 ohm
Sir part 2 🙏🙏🙏chahiye
Board ki kasam jis na subscribe nahi kiya wo exam mai fail💀💀💀
Yes bro abcuse 2069.5
41:16 i.m.p
37:12 (2.25 ohm)
Good evening Sir 🙏
50:52 2nd option
18:19 true
Part 2
😮😮 17:56
15:50 sir pr jb hm na2co3 ko heat kenge tb bhi to co2 niklega ???
50:39 answer is 2
PART 2 AS LIVE❤❤❤ 46:40
Biology questions also in part 2
Ampohteric23:22
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
Thanks for this type of lecture