Note to self: 1)Catalytic props: •Variable valencies •Suitable surface area 2) High MP: Involvement of greater number of electrons resulting in strong interatomic metallic bond. 3) Zn does not show color because: It has fully filled d orbital and is incapable of exhibiting d-d transition. 4) Zn coating on iron is preferred over tin coating because: Zn is more reactive. 5) Maximum oxidation states are shown by: Manganese. Because it has maximum number of unpaired electrons ( maximum number of half filled d-orbital throughout the series) 6) Cu1+ shows no color while Cu2+ does because: It has unpaired electrons. →Talk about M2+|M standard electrode potential in exam. (E°cell= laalach for electrons. More laalach=More E°cell) 7) Transition elements show color because: •d-d transition •only unpaired electrons waale elements show color. 8) Transition elements form alloys: •They have similar sizes 9)How does oxidation state of d block elements differ from that of p block elements: oxidation state of d block elements differs by unity whereas oxidation state of the p block elements differs by a unit of 2. 10) Cu1+ is unstable in aqueous solution Because: It shows disproportionation reaction. 11)d block elements form complexes because: •Small size •Huge charge density •Vacant d-orbitals 12) Lanthanoid contraction: Steady decrease in atomic/ionic radii of Lanthanoid elements with increase in atomic number-caused due to imperfect shielding of nuclear charge by 4f electrons. 13) Consequences of Lanthanoid contraction: •Decrease in basicity •No size increase is seen 14)Chromates change color because: Na2Cr2O4 (yellow) is interconvertible to Na2Cr2O7 (orange) 15)Similarities between Lanthanoid and Actinoids: Elements of both series are •Electropositive •Reactive •Strong reducing agents 16) Differences between Lanthanoids and Actinoids: Lanthanoids (except promethium) are non-radioactive whereas all Actinoids are radioactive. Additional side note- ✓Learn structures and electronic reactions of K2Cr2O7 and KMnO4 ✓Read about trends in M2+/M and M3+/M electrode potentials.
IMPORTANT POINTS --------------> (!) Zinc, cadmium and mercury are colourless because :- -->They have fully filled d-orbital -->No unpaired electron is present -->No d-d transition is possible . (2)Transition elements which show only one oxidation state - Scandium and Zinc . (3)In 3d series which element has the highest oxidation state - Manganese . (4)In D-Block , Which element has the highest oxidation state - Osmium , it shows +8 oxidation state . (5)Diamagnetic - When there is fully filled d-orbital , no unpaired electrons is present . Then it is diamagnetic . In Diamagnetic meu =0(always) . (6)Paramagnetic - When d-orbitals are not fully filled , unpaired electrons are present . Then it is Paramagnetic . (7)Formula f0or Magnetic moment(denoted by meu) = root n(n+2) . U all can also add some important points . Hope this will help u 🙂🙃🙂.
@@loveandlive7111 Bro kya aap pass ho gye thee chemistry mai agar ham toh kitne marks aaye aapke theory mai batna please bro ..mai dunga boards iss baar.. please reply bro
Best compilation of questions . I think , sir , you have taken this questions from MTG book 📚 But you are the best , thanx for this kind of hardwork. You are the bestttttttt ..... Sir ❤️❤️❤️❤️❤️
Sir ur great without charging us nd trying to make our future secure ur doing such a great thing definitely we won't disappoint you sir I will make sure that I will get 70/70 not loosing a single Mark's 🔥🔥
12:24-Manganese can show oxidation state up to +7 27:48- sir here chromium is the least stable ion in the +2 oxidation state 37:12- scandium +3 is colourless because it has no unpaired electrons as Sc3+= [Ar]18
!!!Doubt doubt !!!!!! sir, mujhe 20 wale question me doubt hai kyuki us question me spin only calculate karni hai but aapne magnetic moment calculate ki hai " :magnetic moment ka alag formulae hote hai aur spin only ke alag ] spin only ka formulae - in the root 4S(S+1) hota hai S=s*n hota hai n is spin momoent so the value of n is equal to 1/2 so S =n/2 n is unpaired electron I HAVE CALCULATED THIS ANSWER IS [INTHE ROOT 15]
sir, im very happy with your content. still a request that, pls dont speak wrong.... ik we all can make mistakes but u can edit that part n post the video this creates confusion . for eg. check what u said in 26:20 mins. about reducing agent. anyways , i hope that u will make this better next time :) ☺
Because it is divided in two orbital (n-1)d and ns and due to very small energy gap the both orbils participate in bond formation and hence show variable oxidation state
@@RANBIRSINGH-jm1en thank you broh ,,,, par ek aur reason pata chala cr fe se jyada oxidation state mein milta hai to uske liye electron loose karna aasan hai ??
( for myself) 16:42: colour of the light absorbed .the frequency of the light absorbed is determined by the frequency of ligand. 32:50 because oxygen form double bond that's why it can push to higher oxidation state 40:18 strong reducing agent - red . potential more neg means oxidation potential more positive means - more oxidation means strong reducing agent.
Q-6,7,,,22,23,,24,26i,,28,53,54ii,55ii, 58,100,,101 baaki rxn learn kro chromate and magnate wali and revise f block properties. For rxn practice 50:00 ke baad se ...
33:33 Why Fe(+2) is not a strong reducing agent, after losing an electron it'll achieving stable half filled configuration..? Anyone who knows, plz answer me..
i was also confused but the point is that it is given is water and ek cheez padha hoga apne t2g and eg karke so jo cr2+ hai d4 hain to vo jab cr+3 mai jayega to t2g half filled ho jayegenge jisse stability jayada ayegee as compared to fe2+ ka fe3+ mai
Yes, it is also a reducing agent but Cr is more powerful reducing agent compared to that..! cr2+ loses an electron to form 3d3 , and since 3d3 is easier to obtain than 3d5 in case of fe+2 hence it is stronger reducing agent
Note to self:
1)Catalytic props:
•Variable valencies
•Suitable surface area
2) High MP:
Involvement of greater number of electrons resulting in strong interatomic metallic bond.
3) Zn does not show color because:
It has fully filled d orbital and is incapable of exhibiting d-d transition.
4) Zn coating on iron is preferred over tin coating because:
Zn is more reactive.
5) Maximum oxidation states are shown by:
Manganese. Because it has maximum number of unpaired electrons ( maximum number of half filled d-orbital throughout the series)
6) Cu1+ shows no color while Cu2+ does because:
It has unpaired electrons.
→Talk about M2+|M standard electrode potential in exam.
(E°cell= laalach for electrons. More laalach=More E°cell)
7) Transition elements show color because:
•d-d transition
•only unpaired electrons waale elements show color.
8) Transition elements form alloys:
•They have similar sizes
9)How does oxidation state of d block elements differ from that of p block elements:
oxidation state of d block elements differs by unity whereas oxidation state of the p block elements differs by a unit of 2.
10) Cu1+ is unstable in aqueous solution Because:
It shows disproportionation reaction.
11)d block elements form complexes because:
•Small size
•Huge charge density
•Vacant d-orbitals
12) Lanthanoid contraction:
Steady decrease in atomic/ionic radii of Lanthanoid elements with increase in atomic number-caused due to imperfect shielding of nuclear charge by 4f electrons.
13) Consequences of Lanthanoid contraction:
•Decrease in basicity
•No size increase is seen
14)Chromates change color because:
Na2Cr2O4 (yellow) is interconvertible to Na2Cr2O7 (orange)
15)Similarities between Lanthanoid and Actinoids:
Elements of both series are
•Electropositive
•Reactive
•Strong reducing agents
16) Differences between Lanthanoids and Actinoids:
Lanthanoids (except promethium) are non-radioactive whereas all Actinoids are radioactive.
Additional side note-
✓Learn structures and electronic reactions of K2Cr2O7 and KMnO4
✓Read about trends in M2+/M and M3+/M electrode potentials.
Day after tomorrow 😁
👍👍
@@YuvrajSingh-lb1er death 😢😂
@@YuvrajSingh-lb1er Areyy broo
Thanks bro
IMPORTANT POINTS -------------->
(!) Zinc, cadmium and mercury are colourless because :-
-->They have fully filled d-orbital
-->No unpaired electron is present
-->No d-d transition is possible .
(2)Transition elements which show only one oxidation state - Scandium and Zinc .
(3)In 3d series which element has the highest oxidation state - Manganese .
(4)In D-Block , Which element has the highest oxidation state - Osmium , it shows +8 oxidation state .
(5)Diamagnetic - When there is fully filled d-orbital , no unpaired electrons is present . Then it is diamagnetic . In Diamagnetic meu =0(always) .
(6)Paramagnetic - When d-orbitals are not fully filled , unpaired electrons are present . Then it is Paramagnetic .
(7)Formula f0or Magnetic moment(denoted by meu) = root n(n+2) .
U all can also add some important points . Hope this will help u 🙂🙃🙂.
Wow,...
Fabulous
Op brother
Zinc is not transition element.
Thnk you 💕✌🏼
@@diyakholiya5407 Welcome sis ...☺
Oo sirji iss raat ko bhi .....kya bole its time 2:15am ......that effot by sir is just🔥🔥🔥🔥
Ye purana wala video hai, new shoot nhi kiye hai sir. 3-6 months pehle ka video hai ye, kuch din pehle hi maine dekha tha
Tu kya kar rha h 2 baje
Recorded 😂
53:15
Tumhe kaise pata ki 2:15 am hai
12:32 Manganese(Mn) exhibit maximum number of oxidation states
27th February 2024 wallo attendance laga do 😊😊😊😊😊😊
Abe 27 nhi 26 ko h
@@prateekverma7947 bhai thik se dekh . 27 ko hi hai chemistry LoL 😂😂
Bhai ISC mei ho ki CBSE
Haa
12:26 ,,, question no.10 answer is (mn) show oxidation state from +2 to +7
good to see my brothers and sisters together in the night of our board exam
Yes bhai
Bhagwan bharose kal
Yes :)
@@ikabrain sleep man
@@loveandlive7111 Bro kya aap pass ho gye thee chemistry mai agar ham toh kitne marks aaye aapke theory mai batna please bro ..mai dunga boards iss baar.. please reply bro
Yhi raat antim yhi raat bhari🥲😂
Riyal
all the best guysss
Us😢
Are fatti padi hai pura din organic karta rha inorganic aur physical ki lag gyi😭😭
@@zetrixcsgo kya mtlb pura din organic pdhne ke baad bhi.......nhi aayi🤡🤡
I just want you to know that you’re a legend and that you’re very greatly appreciated. Thank you 💜
Hlw..🤗
@@shivkumaryadav01246 simp alert
@@what_the_hel nice
best of luck for your upcoming exam
Kon kon 26 feb ko padh raha hai😊
abhi baitha hu bhai subah tk jitna ho jayega utna kar rha
@@piyush6442same same 😂😂
@piyush6442 same
27 ko subah 7 bje 🤣🤣
@@meri_mrziii nice bro 🤜
Plz bhagwaan pass kara dena🙏
Hogye bhai pass
Teaching syllabus only ❌Teaching syllabus and life lessons ✅
😂😂
THANK U SO MUCH SIRRR❤❤❤ ... 1 DOUBT -SIR IS IT IMPORTANT TO BALANCE THE EQUATIONS AND WRITE THE SIDE PRODUCTS????
Yes. All equations need to be balanced, and all products need to be written unless question says to write the main products only.
In organic chemistry by products are not important but in physical and inorganic chemistry it is important to write by products
1:00:13
Sir acidic medium mein Mn2+ banna chahiye
MnO2 thori na
Han... Mn2+ bnna chiye
27:45 chromium
Best compilation of questions . I think , sir , you have taken this questions from MTG book 📚 But you are the best , thanx for this kind of hardwork. You are the bestttttttt ..... Sir ❤️❤️❤️❤️❤️
At 27:37
It's ans should be Mn as it attains half filled stability of d⁵ and not Co
Correct
i also think same yr
Correct but look at the charge ….
there is a condistion written named aqueus medium
This is what we actually need!!!
Thankyou
U are the best teacher sir ☺☺
Thanks for your short notes
That's very helpful for me😊😊
Sir ur great without charging us nd trying to make our future secure ur doing such a great thing definitely we won't disappoint you sir I will make sure that I will get 70/70 not loosing a single Mark's 🔥🔥
Zyda nhi bol gya tu .....apni aukaat se
Bhai kitna aaya
Kitna aaya????
Bhai pass ho?
12:24-Manganese can show oxidation state up to +7
27:48- sir here chromium is the least stable ion in the +2 oxidation state
37:12- scandium +3 is colourless because it has no unpaired electrons as Sc3+= [Ar]18
Mere Bhai
@@ChemistryGuruji2.0BP sir🥺❤️
SIR NOW ONLY MCQ'S OF COORDINATION COMPOUND & D& F BLOCK ARE LEFT PLEASE COMPLETE THAT ALSO SIR . 🙏🙏
Bhai kaisey gaye terey boards?
!!!Doubt doubt !!!!!! sir, mujhe 20 wale question me doubt hai kyuki us question me spin only calculate karni hai but aapne magnetic moment calculate ki hai " :magnetic moment ka alag formulae hote hai aur spin only ke alag ] spin only ka formulae - in the root 4S(S+1) hota hai S=s*n hota hai n is spin momoent so the value of n is equal to 1/2 so S =n/2 n is unpaired electron I HAVE CALCULATED THIS ANSWER IS [INTHE ROOT 15]
kaisa rha boards? abhi kya kr rhe ho? mera toh 3 din baad hai hahahahahh
Thanks sir lots of thanks from our side. You are working hard for us and helping us in this difficult situation of coming exams days.
sir, im very happy with your content. still a request that, pls dont speak wrong.... ik we all can make mistakes but u can edit that part n post the video this creates confusion . for eg. check what u said in 26:20 mins. about reducing agent. anyways , i hope that u will make this better next time :) ☺
Why transition metals show variable oxidation states?
Partially filled d orbital
Because it is divided in two orbital (n-1)d and ns and due to very small energy gap the both orbils participate in bond formation and hence show variable oxidation state
Due to participation of both (n-1)d and ns electron in bonding in different compounds.
because both ns and ns__1 participate in hydrogen bonding
Because of less energy gap between (n-1)d and ns orbital and the electrons take part in bond formation..therefore, transition metal show variable O.S
12:27 Mn.....it shows highest o.s which is +7
27:45 chromium(Cr)
1:15:55 Thankuuuuu sir❤❤❤❤
Preparing for 27 th feb , still organic is pending, let's see how the exam will go 😔
Best of luck 🤞🏻
watch sourabh rina for organic 30 mins bro covers whole chapter
@Jorshua-ck6dh really
12:33 won't the answer be Mn ? It's shows oxidation states upto +7
true brooo
Yes it is mn
2024 boards 👇
Sir in mno4- + H20 = mno2 but in some cases it was mn+² why I have doubt in this check it out in rxn
So2+mno4-+H20
12:28 Mn will have max O.S due to max no of unpaired electrons
How??? Cr has most unpaired electron 4...so how mn?
Sir doubt h Alkali ko dichromate me add krenge to reversible h ya irreversible h rxn
2024?
25 feb walo kaise ho
yo man
Halat खत्म
😂😂😂
😂😂😂
Sir Fe2+ Strong reducing agent kyu nahi hai ??? isme 3d⁶ 4s⁰ hai to bo ek electron dekar half filled hona chahega ????
Cr3+ mein t2g half-filled configuration hoti h jo ki most stable hoti h
@@RANBIRSINGH-jm1en thank you broh ,,,, par ek aur reason pata chala cr fe se jyada oxidation state mein milta hai to uske liye electron loose karna aasan hai ??
@@RANBIRSINGH-jm1en bhai ase too mn3+ bhi d4 to d3 hoga ???????as same as cr2+
Sir pyqs ka pdf share kar dete to bahut help ho jati😊🙏
12:27 ans is Mn 🙃
15:41 ans is 7
27:43 ans is Cr
27:43 wrong he Bhaii dukhi toh hum he SCIENCE LEKAR
Sir pyq series and mcq series enough pass the chemistry in last 10 days..
bhai kitne aye
1:00:20 sir m toh confuse hogya kbhi aap bolte ho ki MnO4- ko acid m dalenge toh Mn2+ bnega aur kbhi mno2???
Same 🙁
Sir we appreciate your dedication ......
For sure , no one can find a best teacher like you ......
Rom rom bhai rom rom 🤙🙏🙏🙏🙏🙏
35:04- value depend on more stable one which is mn 2+ as it will directly give d5 configuration whereas fe 2+ can't
Your efforts are speechless....without any pay u are doing so much hardwork for us ...Thnku so much sir❤️
1:15:33 in Oxi state the energy gap of lanthanoids is written small shouldn't the enegry gap b/w 4f n 5d be large??
any compartment student here😥
Hn
Compartment ❌
Improvement ✅
Mai to abhi dekh ra 😂
M bhi @@devrajdiwan8108
Same bro 😂
You r my fv teacher from YT😊
Koi abhi padhna shuru kr rha h meri trh improvement ke liye😢😢
( for myself)
16:42: colour of the light absorbed .the frequency of the light absorbed is determined by the frequency of ligand.
32:50 because oxygen form double bond that's why it can push to higher oxidation state
40:18 strong reducing agent - red . potential more neg means oxidation potential more positive means - more oxidation means strong reducing agent.
12:20 Mn shows the max no of oxidation states
Sir, oxidising agent and reducing agent wale topics mein bahut confusion aa raha he
12:00,15:30, 23:32, 27:00,28:00,31:28, 33:00, 37:00, 41:00,43:00, 49:00,1:04:50
Q-6,7,,,22,23,,24,26i,,28,53,54ii,55ii, 58,100,,101 baaki rxn learn kro chromate and magnate wali and revise f block properties.
For rxn practice 50:00 ke baad se ...
Sir pls ye equations ke liye ek detailed video banti hai
Sir hard work is not everything
Please work on quality of explanation ❤️😇
Ok dear will try to improve
@@ChemistryGuruji2.0 ❤️❤️ thank you sir
bro there are one shots for this
bychus se aye ho kya bhaiya.... kitne paise mile aase hate comments ke ????
@@SAHILKUMAR-dz6pp sir ji Samaja gaina bujhla .
Tu gyan ne pela .
27:50 chromium is least stable
In completeing the reactions, is balancing compulsory? Main product ke sath by product likhna bhi important he?
Bhai mujhe bhi isme he problem horahi h tumhe pata chala iska answee???
@@hshsmadesur1350 by products are important.. balancing kroge tho accha rhega
sir new pyqs series kb aaegi 😢 pls sir jaldi series le aaiye preboard aane wale h !!
Last day watching a video today my boarad exam so many many 🙏 🙏
Same bro
@@SoniaSharma-sg2oq bhai same
Sir cbse board ka pyq hai kya?
Yep😊
Jese hi concept samjh ane lage vese hi ...ek naya exception a jata hai...😅😢...jindagi ke maze toh ye lere
The best way of revision and this is possible just becoz of you sir ❤
Hey I think this will be helpful
Most important questions of entire video 55:00
Is this enough for cbse board
Ha
12:32 Ans C
37:24-37:49 thank you for repeating exactly same thing which is written in question
Serf pyqs krne se ho jaega na ? Mne ncert nhi ki abhi ...plse bta do
bhai notes padhle sir ke iske ilawa
Thank u so much sir...
1:00:11 MnO4- acidic me mn2+ me badalega
Kis kis ko chemistry samajh nhi aati meri trh😅
Thank youuuu soooooooooooo muchhh
You have no idea aapne meri kitni xyada help kari, do din se aapke videos se padh raha hu, Seriously, I love you!
Lots of silly mistakes, I will score nearly 55-60
Sir question no 60 me mno4- mn2+ me knu convert hua Oo to neutral medium me tha na
Who is here in 2024😂
33:33
Why Fe(+2) is not a strong reducing agent, after losing an electron it'll achieving stable half filled configuration..?
Anyone who knows, plz answer me..
i was also confused but the point is that it is given is water and ek cheez padha hoga apne t2g and eg karke so jo cr2+ hai d4 hain to vo jab cr+3 mai jayega to t2g half filled ho jayegenge jisse stability jayada ayegee as compared to fe2+ ka fe3+ mai
Yes, it is also a reducing agent but
Cr is more powerful reducing agent compared to that..!
cr2+ loses an electron to form 3d3 , and since 3d3 is easier to obtain
than 3d5 in case of fe+2 hence it is stronger reducing agent
39:20 sir is wrong there in 56(ii) part ans of it is Ti and sir says Mn
Yes Bahut confuse kr de rhe h inka ye old video thik nhi hai...
Answer should be Mn .....Sir is right 👍....book me galat diya hua h jaha se sir answer likha rhe h......pahle concept pe dhyan do.....😊
Dhanyawad guruji
Thanking to you sir❤🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉
16:40 yehi haal h saare subjects m😞
37:45 55,56,57,58
44:35 102
Sir jab colored ion dekhte hai to kya S orbital me bhi koi unpaired electron ko consider krte hain?
No, since we only have to consider the elements of d-block
Sir please ik seperate video daal do potassium permanganate ki reactions pr please yr smj nhi aa rahi vo
Thnku so mch sirrr
Where is this pdf of this session
Not in telegram please tell sir
Sirr reactions m by product likna compulsory h kya
Sir pyq ke notes bhi upload kr dijiye 🙏🙏🙏🙏🙏🙏 please
Ok kar dunga beta
@@chemistryorganic1456 ok sir MCQ ke v
34:28 sir Fe2+ bhi ho sakta hai kya because vo ek electron loose karke stable ho sakt hai
sir please answer quickly
Thanks 😊 sir ji
Sir 10 k answer c h plz replay krka batana sahi bola ki nhi
12:20 SIR IDHAR MANGANESE HOGA ANSWER (C) OPTION, but apne galti se scandium bol diya hai
Mn hi hoga par sir batane wale the par students pe chhor diye h start karke 🧤
Is this enough for boards please tell 😢
Same here bro i want to score about 45 marks in chemistry
@@gaganjotsingh5144i asked one of senior it was enough he got 75% , how many lesson have you done?
@@abhinavchoudhury7000Yes this is enough..Also do NCERT EXERCISE..YOU WILL GET MORE THAN 45👍
@@abhinavchoudhury7000 I have done 5 ch cordination and organic has left
What have you did I mean only pyqs or ncert too ?? @@gaganjotsingh5144
Ques 10--- magnese (25)
Sir plzz in reactions kii alg se video bna do learn krne m problem ho rhi h or sbse jyada questions bhi esi m s aate h
13 14
cu2+ and cu + which is more stable wale ques important
ans is hydration energy and disproptionation reaction
33:46 imp concept
Sir jo reactions app ne karwaiye hai inko balance karna jaroori hai kya
@beingjeeaspirant yaar samjh Mai nahi AA rahai hai
Salute u sir... I will work hard and get 70/70
Abhi start kiya hai 💀💀😶🌫️😶🌫️
Noice
Iss jo aap ye bta rhe ho iske bhi notes pdf form me chahiye please aap description me daal dijiye
52:04 y sab kaysay karty hai ?? Apny 30 min revision series may nhi tha
Sir ji saare pyqs ka pdf telegram par bhej do ....👍❤️❤️❤️
Aapko mile to mujhe bhi btana..
left to complete from here 43:09
27 feb ki taiyari kr rhe na😆😅
@VedicVibes7 to phir
The legend
Ha bhai haa...😂
class notes kidhr se kre pdf form mei dwnld?