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Class 12 Chemistry Boards 2023 | Most Important Numericals of Solution | Previous Year Numericals
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- čas přidán 13. 01. 2023
- Class 12 Chemistry Boards 2023 | Most Important Numericals of Solution | Previous Year Numericals
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Sir....i request you to give the answer of the numericals ....so that we could check the answers after resolving them......
Ans diya hai sir ne jo ek slide sir skip kr rhe vo ans slide hi hai.
De rakha h unhone thik se dekho
19:18 the mass of solvent should be 90g , not 100g
yessss
Yes .. U are right .. I was confused ki sir ne 100g kyu liya
No it will be 100g
@@gktester3478 how?
the sol in other websites also shows 90
Thanks a million times for this sirrr! YOU ARE SAVIOR ❤️
true
False
@@venomfacts5458 i'm with you
6:33
Which concept is this question based on
12:17 mb = 342g/mol
Is question ka answer sahi nhi h
Don't be so worried about your exams just say suiiiiiiiiiiiii and move on 😊😊❤❤
Suiiiiiiii
Suiiii
Sir at 22:51 W(a) will be 95 gm because it is mass of solvent not mass of sol
hi
i love you
Bhai to pura strait forward nikla
I love how bharat sir has made me from CHEMISTRY 🤢🤢🤮😭😭 to CHEMISTRY 😃😊🤩😎😎
Apa ayth
qiqi
@@Max_Goodwin_0 hi kazuha btw I main your mom beidou
@@deshnamahanta3580 haha okay i main raiden mommy
30:57 sir aapne degree of association ka formula use kiya h.. dissociation ka aagega
sir i wish i found your channel earlier. this was so helpful before boards
Mee too bro
yes
Uss vro uss
@@binasinha5837 what
MAI TO EXAM SE PEHLE DEKH RA HU
.,
@18:31 answer is wrong sir Wa will be 90
25:03 mass of solvent 95 hoga na sir ......apne 100 likh diya hai 😔
Apne aage question hi solve nhi kiya warna ans shi nhi ata
Ha na bhai q8. mai bhi ye galti ki hai 😢
22:48 sir aap molality nikalte vaqt mass of solvent 100 g lete ho lekin soln. Me 95g le rakha he ????
Han
Mein bhi kar raha tha wrong aa raha tha
Phir 100-5 kiya tab thik se answer aaya
9:55 is the ans 0.70k ??
12:10 is 342 g/mol
Absolutely
Ryt👍
I can say that u r my universe from now😵🥺...
Tomorrow morning I have board exam and seeing u now I feel like u can too score perfect 90 percent even if I just started studying 😭😭
Hi bro kaisi ho rakhi ha tayari
Mera bhi hai 😂
I haven't studied a thing🙂🤝
@@maanvibharti abhi krlo thoda bht jo kl ko apni trf se bnake likh ke aajao 😂
I haven't studied 🥲 and I don't know what should I do now also what can I do 😓😭i just want to pass
Sir agar Wa , mass of solvent h toh usko solution se minus krna pdega na , apne toh direct likha hai bina minus kre ?
Foe example, question 55 - Wa 95 ayega kyonki 5gm cane sugar h , lekin apne toh direct he 100 likh diya ? Why sir ?
Sir teno subject ko ek din mak kaise padhe pls reply sir
I'll try to work hard and daily so that mujhe b ye din na dekhna pde wish me luck.
@@adeetigupta5473uss bro😂
@@protyasengupta3863 🗿🤝
😅 uss bro uss. 😢😢
*Teeno subject ka poora syllabus
54 galat hai sorry not 54 many of them are wrong... cause uhh have takrn the mass of the solvent 100g but it wont be as if 10% is dissolve then the mass would me 90 not 100 !!!
Konsa question number vro?
Har question me glti h yr
22:26 ans. May be mb=342g/mol
4:55 answers is 6.08×10^4
10^(-4)
9.5x10^-4
25:05 sir iss question ko ∆tba/∆tbb=kb*m/kb*m se bhi kr skte na without kf ki value find kiye😢
sir 31:00 pe aapne degree of dissociation ka formula galat likha hai
Bhai n ka value kya hoga usme
Thank u sir ❤💕
Sir D and f block reaction one shot with tricks krado 🙏
5:03 ans = 6.08 x 10**-4
Yuppp
Unit kya lgegi
Gram per litre
Sir 19:30 51 number question ka Delta Tf ka sahi answer kya 76*10^-1 K aa raha hai?
please also provide pdf for one day before exam
LOVE YOU SIR FROM BOTTOM OF MY HEART
Hey, i dont know if this is the right time, and prolly won't get a reply, but are these questions enough to cover numericals for the chapter? I can solve most of these questions and i didn't even studied that well, so was alittle in doubt 🥲. Also thanku sir, ur lectures really helped me alot. Hope apka channel aur students takk pahonche.
Bhai ncert khol saare solved , intext , exercise vale questions kar Agar tu vo solve kr leta hai to confidence aa jayega fir is video pe aa 1 chapter ke saare ncert ke ques karne me maximum 4 hours Lagaenge aur PC me 3 chapters hai to 12 se 15 ghnte me tu theory plus numerical kar lega fir pyq's laga aur 1 ½din me PC kahatam fir aadhe din me d and f block, coordination compounds mene padha nhi to I can't tell anything about that aur oc ke shobhit ke pass ja ye sab karke Chem me to 45 plus laa skata hai
@@Rohanguleria12 bhai thanku yr. Mereko toh lga tha fail hu, but confidence aa gya 🥹. Bs organic sambhal le koi
@@toolazytothinkthename Delhi or outside Delhi??
@@Rohanguleria12 outside bhai. Aapka?
18:00
90 hoga mass of solvent 👍
Happy Birthday to you soon
Sir u are the god for our boards prep....thanks alot for ur revision series 🙏🙏
Bhai tune bhi abhi kiya kya 😂😂 ye chapter.
@@satishsen1228 count me in lmao, guess i get no sleep tonight
@@satishsen1228 formula recognise kr rha tha numerical dekh ke😅
Thankyou so much sir 🙏❤️
Promise kal ka paper fod denge ✊🤠
I want to ask that, for physical chemistry, boards, ncert examples, exercise, intext questions enough????? Cuz i saw some questions on CZcams which were way tougher so what do i do???
9.55 ans of q no..43 is 0.702k and 45 ans is...342mol kg^-1...thnku sir jiii💕
It's 0.0702k
@@arnavpawar9335it's 0.702K
Feeling confident ❤
Answer for 9:43 ∆tb 0.702
How to find i ?
Sir en questions ko krne k baad ncert k in-text and examples krna important h kya??
24:35 mass of solvent is 95 not 100
31:00 pr bhi aapne galti se association ka formula likh diya.
Sir question no 51 mein mass of solvent 90g hoga
22:54 pr solvent 95 hoga na because 5 solute ha
What's the answer of second?
Washing machine 1000 mein degii ! Kon vimla 😂
Only Legends Can Understand
😂😂😂
4:55 answer is 6.08 10^-4 😊
Ya question cbse boards ma bhi aye nge kya
15:56 Wb=5.07g
Very hardworking ❤
Thank you so much sir 🙏
Confusion point: boiling point of pure water 373 Lena h ya 373.15
0C=273.15K , to make calculation consider 0C=273k
373K lo and har jagah 273 k use kro
@@Lohit-u8b thnx
Sir please upload Electrochemistry and Chemical Kinetics chapter important Numericals also.🙏🏽🙏🏽🙏🏽 It's my humble request to you 🙏🙏🙏🙏🙏🙏🙏🙏
Please reply to me🙂🙂🙂
14:03 sir jo solution apne attache Kiya h wo wrong hai.
But sir ne jo bataya h ekdam correct hai
Btw answer is 270.67k
55 wale question mae 342 ki place pr 180 aana chahiye ?
Thank you so much bhaiya for such short and most important videos as we really need to revise all the things in one month ❤️🌸
Aapka syllabus ho gaya hai kya saara
@@userdied8479 hnn...bs revision krna h
@@deepanshisharma2187 yaar pls mera bhla krdo
@@userdied8479 kese??
@@deepanshisharma2187 yaar mujhe sb bhulta jaara hai
At 9:24 I can't understand about vant Hoff factor (i).... can you explain ?
Bro wo salt h cucl2 to wo dissociate hoga aur jb bhi dissociate ya associate hota h to colligative property me ‘ i ’ se multiply krte h that is vant Hoff factor . I hope u get it now
@@ALSOCRAXY bhai I ki value aati h ki kitne no. Of particles m dissociate ho rha h. cucl2 mei 1 particle Cu ka and 2 Cl k h to total 3 ho gye bro . 👍🏻Ab to clear ho gya hoga bhai 😄
@@ALSOCRAXY arre koi na bro 🤜🏻🤜🏻
@@ALSOCRAXY hn bro
@@itachi_tomioka236 apna koi bhi chij to do ......like insta telegram WhatsApp
GREAT TEACHING 💯🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥
Sir I think apne 51 wala Mai galat Kiya hai molality is moles so solute by weight of solvent in kg ab 10 g solute lenga to 90 g solvent bachega and us hisab se Wa apka 90 hona chahiye
Hmm u r right
So sir adhe bache fir galat hi karenge @@ChemistryGuruji2.0
sir u have done everything wrong sir, u didnt subtract mass of solute from mass of solvent for all the questions that has to be caluclated by mass students this video is wrong please refer another one for numericals
HellO Sir Ji
19.35
yaha par aapne WA=100 liya hai Kya Vo 90 nahin hoga please confirm karke bataiye !!!!!!
Haa 90 hoga
100 toh mass of solution hua na
@@maxill1060 han vahi to!!
Sir thoda sa darr lag rha h sir....sab aapse hee kia h...prr darr lag rha h sir...but will never give up😤😤❣
@18:31
Answer is wrong Wa will be 90 instead of 100
Yes I was also thinking the same if 1% is sucrose then water should be 90 g not 100 right?
Everywhere sir is using mass of solution as that of solvent 10%w/w means 10g is present in 100 g so mass of solvent will be 90
Yeah... I was thinking the same
preparation for school exam i wish ke exam aacha he ho
Question no. 77 aapne galat formula likha hai for dissociation ka
Alpha = i-1/N-1
Sir confusion ho rhi hai vont of factor or degre mai
If by any chance I'll able to get 65 marks in chem then all of credit will goes to Thanku 🥺💓
When to use ∆Tb = i × Kb × m ? And when to use only this ∆Tb = Kb × m ?..... Please anyone reply 🙏🙏🙏
When the solute is ionic we use i and when the solute is covalent we don't use it as I=1
8:42
@@Og_Gladiator got it... Thanku
@@ashleshajdhv thank u so much
@@Og_Gladiator so we don't have to apply this for C,H,O etc?
Question no. 43 mein i = 3 kaise aaya
CaCl2 jab break hoga toh 3 ion banenge Ca2+ ka ek ion and 2 ions Cl- ke . Sir 9:01 oe likh ke dokhaya hai . Jitne ions mein dissociate hoga wo uska i hoga
Sir 10:12 pe apne likha hai 5 g in 100 gm solution toh sirf water ka mass 95 gm hoga na ?? Plx reply anyone
Sir 24:51 mein question 65 ka answer Tf= 269.07K aa raha hai sahi hai?
yeshh
sir 30:56 me degree of dissociation bola hai app association ka formula lagaiye hai
Sir question number 51 ka solution thik se samaj nhi aa rha hai
A Ans 51 is = 13.6
BAns 51 is ∆Tf=24.1
3:48 sir the answer is wrong correct answer is 0.102M
Thanks Sir. It was Fast and it helped a lot, felt like Revised the whole numericals
21:33 the actual answer is 25.6
31:08 wrong sol
Sir please, D.O.D me "n" niklna sikha dijiye
Sir hum pyq' ki series dekhe har chapter wali jo aapne phle krwai thi ya fir ye most important wali....konsi best h sir time bhi kam h
thank you so much sir...🙏🏻❤💕
9:46, delta tb = 0.70k
how to find i ?
Mera bhii unit bata do
Sir case based questions ki practice kra dijiye....🙏🙏
These short one shots + 2x speed = boom🔥
2x speed ki kya jarurt hai sir ese hi tez bolte hai
Sir apne 1.5 degree Celsius ko 1.5 degree kelvin kaise likha
sir in every x% solution question aapne WA galat liya aapne minus nhi kiya mass of soluvent ke jagah mass of solution le liya
Sir apne yh i ki value 3 kyu lii hain..?
sir pls reply... apne jo firmula sheet provide kiye hai...usme kiya sare chapter ka formulas included hai ??
Best teacher of chemistry 👍
@Technical knowledge lawde, apna kam kr
Thank u for that sir
Sir meine arihant ki chemistry pyq book le li hei sample paper lena bhi jaruri hei kya ya fir PYQ book se hi sab cover ho jayega pls reply me 🙏🏻
1 book ko 2/3 bar pad lo jyada nahi
Bro pls provide me that book plss
@@dipu9875 khi bhi mil jayegi ye book aap book store pr jaakar bol dena arihant Pervious year question book dedo 👍🏻
@@shaikhnasra5270 mera syllabus bahooth sara bacha hai kya karun ? 😭😭bro thumne kithna portion complete kiya hai ?
@@yuvarajkz HAR CHAPTER KE 30MIN REVISION VIDEOS DEKHO AND IMPORTANT QUESTIONS WALA VIDEO DEKHO..HOJAYEGA ARRAM SE
In degree of association what does n stands for?
no of mole
4:55 Solubility=5.28×10^-4
I think solubility = 6.08 ×10^-4
Bro ans is 6.08 ×10^-4
Will the values of molar mass given in exam??
Yes it is given in exam
Sir you are the best teacher ever for chemistry......sir m apki videos hi dekhtii huu boards exam ki preparation ke liye....m coaching center nhi jati....sir aap bohot acha padhte hoo ✨ Thanku so much sir 🙏
Same
In mass percentage its x gram of solute in 100g of solution so mass of solvent Wb=100-x but it is being taken 100 in several sums...
∆Tb = 3×0.23
= 0.69
Compounds of kmo4 and k2cr2o7 ki trick please please
Sir in 55 que how you take 100 g as a solvent
Totally time wasting
Only bharat sir students knows how cheap the washing machine in Washington
Sir i factors kab find karna rahega yah bta dijiye plz 🙏🙏🙏😔
Sir please help me
Questions no.81 temperature 300 kaha se aa gya
Yes sir exactly same question?
Q43.i=3 kaise aya
Best teacher. ❤
Sir ab casebase study question ki bhi practice kra dijiye
most underrated chemistry channel🌟
4l subs