Atomic Structure | Chp 5 | MCQ's for MCAT, ECAT, PPSC, FPSC | first year chemistry | by Waris Hameed

[@UsamaShaikh-f2c]

Thank you so much 👍

[@Foresightkas]

Allahmdulillah..

[@shakeelasarwar7174]

sir apki vidio 😄🤣😛🥰🤪😜😝🤭🤗

[@duasajid425]

JazakAllah

[@zaferiqbal9370]

I need more mcqs

[@zaheerullah8494]

Very nice dear sir

[@geetkhurrana4270]

Pdf ki ap plz link den

[@wardakhan2873]

Very helpful

[@toobakhan1297]

38 seven religion is the right one

[@jatinpatro3541]

Radio,micro,infrared,visible,uv,x ray,gamma,cosmic. Total 8

[@doctorlaiba8436]

hum kahty hai k test mai out of course ata hai likn aj mai na ya chapter read kya r ab mai na is video k maximum question solve kyi agr yahe mcqs mdcat mai ajai InsAllah clear hojai ga test

[@doctorlaiba8436]

all questions are present in PTB

[@muhammadshoaibshahid2329]

@@doctorlaiba8436 hua ya ni phir

[@fajarmalik270]

Excellent

[@Islami.5]

when the 6d orbital is complete the electron goes to please explain

[@ChemistrybyWaris]

n+l rule is used for this purpose..... If any orbital has less value of n+l than it will be filled first Following is the energy increasing order of orbitals: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p

[@uzmaraniuzmarani3356]

informative

[@affankhan2920]

sir pdf ?

[@yasiryasir4342]

Informative

[@khalidhussain790]

Good

[@sammerklasraabbas5882]

Amazing

[@ChemistrybyWaris]

Thanks

[@FatimaKhan-sj6bl]

question no 38 there are 7 regions of specrum. How are they 8?

[@pubgLORD]

24 opstion is not corect power not in minus

[@ChemistrybyWaris]

You are right.... Wo option galt hy..... 1.758820 × 1011 C/kg.

[@shakeelasaeed5136]

helpful👍

[@bhawankumar2547]

Sir ager Wave number wala probelm samjhain thora plzzz

[@ChemistrybyWaris]

It will be more easier for me if you ask for the calculation of wave number for specific series. We know that Wave number = 1.09678 X 10 power 7 X [1/n1power2 - 1/n2 power 2] n1 is the initial position of electron in an orbit and n2 is the final position after excitation. By an Example: Suppose an electron jumps from first orbit to 2nd orbit by the absorption of certain amount of energy. We can calculate its wave number by the use of above formula: n1 = 1 n2 = 2 use these values in above formula wave number = 82.26 X 10powe5 m-1

[@MohsinKhan-nt2su]

Yr urdu me ni describe kr k moth ajani thi kya apko

[@jeetashpreetmani896]

Some mistakes are there?

[@ChemistrybyWaris]

You can suggest correction if find any mistake.... I will try to explain

[@uqamas654]

When 4p orbital is complete then its electron goes into 5s orbital can you please explain clearly how it goes to 5s orbital i didn't get the way you explained the answer explain it deeply by sequence

[@ChemistrybyWaris]

Electrons are filled on increasing value of n+l rule... In other words if any orbital has less value of n+l rule than it will be filled first... n = principal quantum number l = azimuthal quantum number

[@ChemistrybyWaris]

4p = 4+1= 5 5s = 5+0= 5 If its values are equal than we fill the orbital having less principal quantum number value.... e.g 4p than 5s

[@farazmalik4513]

2nd mcq B option is correct

[@umairjutt3608]

69 question 'm' give information about orbitals in an orbit so betaaa should be right one isn't

[@ChemistrybyWaris]

It gives information about degenerate orbitals in a sub shell..... E.g p subshell has 3 degenerate orbitals px, py and pz. So there magnetic quantum values are -1,0,+1

[@Cocomo123]

​Sir at 4:46 13 mcqs mn ap n kaha . Velocity of the photon is equal to the velocity of the light to ismein yah Wala bhi to option likha hua hai ki velocity of the photon is independent of the wavelength yah wala kyon Nahin pic Kiya.....​@@ChemistrybyWaris

[@bluestorm7191]

Not explained well, was good in advertisement🙄 Thats just an key ...

[@ChemistrybyWaris]

I also have to save the time for not too lengthy video so I explain the difficult mcqs.... You can ask your question in comment.... I will try to respond you.....

[@bluestorm7191]

@@ChemistrybyWarisi think it will be better to give refrence and to help seek new ideas about merrit maker questions,... I didnt watched ur one question,.. Just saying it could be better explained...