Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App. Download the App from Google Playstore ( bit.ly/2SHIPW6 ) Physicswallah Instagram Handle : instagram.com/physicswallah/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6 Physicswallah Website: physicswallahalakhpandey.com/ LAKSHYA Batch(2020-21) Join the Batch on Physicswallah App bit.ly/2SHIPW6 Registration Open!!!!
What will you get in the Lakshya Batch? 1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey. 2)Live Classes and recorded Video Lectures (New, different from those on TH-cam) 3)PDF Notes of each class. 4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level. 5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture. 6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021) 7)In case you missed a live class, you can see its recording. 8)You can view the videos any number of times. 9)Each chapter will be discussed in detail with all concepts and numericals 10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams. ****Test Series for XI & XII**** We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year. The test series follows very logical sequence of Basic to Advance questions.& Evaluation of Test and Solution to all the questions at the end of the test.
Bhaiya ap jaiseaa koi nahi hai mera leya ak din mea apko support karunga by anything which you needed 🙂🤗 And it's my dream to convert my India most developed and richest country among all nation 😤
0:19 - All cations are colourless except, Fe²⁺, Fe²⁺, Cu²⁺ 0:52 - All anions are colourless 1:56 - Coloured CATIONS:- Fe²⁺ ---> Green / Light Green Fe³⁺ ---> Yellow Cu²⁺ ---> Blue 2:12 - Coloured ANIONS:- Mn0₄⁻¹ ---> Pink or Purple Cr₂O₇⁻² ---> Orange 3:30 - How to predict colour of a compound 5:03 - We cannot predict colour of hydroxide 5:56 - Reaction of compounds with NH₄OH and NaOH 8:06 - On reaction with NH₄OH ,FeSO₄ gives Fe(OH)₂ which is dirty green gelatinous ppt
Hi.. I'm myself a math phy n chem teacher and I must congratulate u for the kind of effort and sincerity u bring to the table.. amazing job.. u have lots of blessings of these kids who watch ur videos.. I've seen how stupid n incorrect other teachers' videos are and thus urs are class apart.. I wish u all the success in your endeavours.. kids need more dedicated teachers like u in today's world.. I only do face to face classes so when a kid can't come to me then I recommend ur channel :)
Sir aap hi bs aise youtuber ho.... Jo kvi kisi video me channel subscribe ya like krne nhi Kehte........... May u get soo soo much of blessings,likes and subscribes.... THANK YOU for this efforts....hit like those who agree for alakh sir....
The best teacher I have ever come across You saved my life. I was fed up memorizing the colours of compounds and then I got this video. Now I am able to tell the colour of any compound. Thanks sir
Uncle:beta lockdown me bhi class shuru hai Me: ha..... Uncle:kitne bacche aate hai class me Me :2.5million ..... Uncle:fees kya hai class ki Me: zero..... GST mila ke.... Uncle:to yeh lockdown to tumhara kicch nahi bigad sakta Me :a year lockdown cannot change my future😂😂😂😂😂😂😂
Sir aap kisi bhi topic ko kitna simple kar dete hai. Respect from heart and you are doing a great work. May God reward you.Ap ko subscribe krke apne ko fayda hai.
Currently I am in 10th icse.. So I'm planning to prepare for Jee Advanced from 11th.. I wish to receive coaching from Alakh Pandey Sir (not online).. But the problem is I'm from West Bengal.. It'd be difficult to recieve the coaching offline from him..
Alakh sir एक ऐसी कहानी है जिसमें हम प्रयास देख रहें हैं कामयाबी पाने के लिए (time before 3-4 years) और हमारी ये खुश नसीबी है कि हमें इस कहानी का परिराम भी पता है जो है बेसूमार सफलता और बेसूमार अपने छात्रों का प्यार (present situation)🙂
Sir a hearty thanks to you .I am student of 10th board for 2021 and your valuable 19 minutes video of 2017 is valid even today in this lockdown, I completing my full syllabus by seeing your videos which are very helpful to me. A Salute to you sir ,you are doing a great job especially for needy students . I will repay your work on one fine day...
Tomorrow is my chem board exam 2023. The physics paper was a bit difficult and the most hard paper in 10 years. Not a single thing came from consise. I am trying my best for chem.
A trick for you .......Na oh ya NH4 OH excess me hoga to jinka colour hai already jese ke ferrous ferric and copper voh tab bhi solube nhi honge aur baki ke jese ke lead nitrate zinc nitrate calcium nitrate sab solube ho jayenge
Colourless salt solutions : forms white precipitate (hydroxide). Blue salt solution : pale blue ppt. Green salt solution :dirty green ppt. Yellow salt solution : reddish Brown ppt. ( all ppt. Above mentioned are hydroxides) ☺️hope that it is helpful
Wowwwwwwww thank you so much sir...I was preparing for my boards n ...I was very weak in chemistry but now after watching all your videos I'm confident to write the exam...credits to you sir thanks alot
Sir you are GREAT .........you cleared my all doubts ..at the last moment our teachee left the school but becoz of U I have covered ally physics and chemistry topics..........Thank u sir
I have a doubt sir.....as you said the colour of cupric ion(charge=2+) is blue and the colour of oxide ion(charge=2-) is colourless then how come CuO is black ....it should be rather blue
sir, i really like your way of teaching....n....i really respect you........i am a 10th icse board student and mne apna physics syllabus apki videos dekh kr hi complete kiya h............you are the best🤩
Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
Download the App from Google Playstore ( bit.ly/2SHIPW6 )
Physicswallah Instagram Handle : instagram.com/physicswallah/
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Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20
Physicswallah App on Google Play Store : bit.ly/2SHIPW6
Physicswallah Website: physicswallahalakhpandey.com/
LAKSHYA Batch(2020-21)
Join the Batch on Physicswallah App bit.ly/2SHIPW6
Registration Open!!!!
What will you get in the Lakshya Batch?
1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
2)Live Classes and recorded Video Lectures (New, different from those on TH-cam)
3)PDF Notes of each class.
4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
7)In case you missed a live class, you can see its recording.
8)You can view the videos any number of times.
9)Each chapter will be discussed in detail with all concepts and numericals
10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
****Test Series for XI & XII****
We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
The test series follows very logical sequence of Basic to Advance questions.&
Evaluation of Test and Solution to all the questions at the end of the test.
Thank you sir for this explanation
Sir what is name of colour metallic oxide that mices with alkali to yeald color less sol
Explain thoroughly
How to determine the colour of lead iodide
Bhaiya ap jaiseaa koi nahi hai mera leya ak din mea apko support karunga by anything which you needed 🙂🤗
And it's my dream to convert my India most developed and richest country among all nation 😤
@@Alone-vj4mj KAM KAR APNA LAUDE
0:19 - All cations are colourless except, Fe²⁺, Fe²⁺, Cu²⁺
0:52 - All anions are colourless
1:56 - Coloured CATIONS:-
Fe²⁺ ---> Green / Light Green
Fe³⁺ ---> Yellow
Cu²⁺ ---> Blue
2:12 - Coloured ANIONS:-
Mn0₄⁻¹ ---> Pink or Purple
Cr₂O₇⁻² ---> Orange
3:30 - How to predict colour of a compound
5:03 - We cannot predict colour of hydroxide
5:56 - Reaction of compounds with NH₄OH and NaOH
8:06 - On reaction with NH₄OH ,FeSO₄ gives Fe(OH)₂ which is dirty green gelatinous ppt
Fe 3+ is yellow not Fe 2+
Thank you Bhai
@@larapinto yes sorry, I have edited it now
FeCl is brown black or reddish brown
@@INVICTUMreal🖐️There is nothing like FeCl
And, FeCl2 - light green
FeCl3 - yellowish brown
Cl being colorless colour depends on cation
Who is watching in 2024 ??
🤚
Meeee
Me
Me
Yo
Hi.. I'm myself a math phy n chem teacher and I must congratulate u for the kind of effort and sincerity u bring to the table.. amazing job.. u have lots of blessings of these kids who watch ur videos.. I've seen how stupid n incorrect other teachers' videos are and thus urs are class apart.. I wish u all the success in your endeavours.. kids need more dedicated teachers like u in today's world..
I only do face to face classes so when a kid can't come to me then I recommend ur channel :)
Hii, my Chemistry teacher's name is also Shalini
@@samsunggalaxy5498 😅
Mine too!🥴🤣😂
@@anonymous5938 which school ?
@@samsunggalaxy5498 DELHI PUBLIC SCHOOL , BANGALORE, KARNATAKA
Sir the best teacher's award should be given to you only
Right sir should get award
Best teacher toh mummy papa hote hain
Ghanta award
Yes right
Others teachers be like:- hum to chutiye hain,🤣🤣🤣
Sir kya awesome video hai...
19 min me puri analytical chemistry samjha di...
You are great...👌👌👌👌👌
m.th-cam.com/video/UOAgHS1hWD0/w-d-xo.html
yess u r rgt
Mai 2x speed me dekhta hu
Not
@@reetuagrawal9156 hey brother pehchaana 😂😂
Sir aap hi bs aise youtuber ho.... Jo kvi kisi video me channel subscribe ya like krne nhi Kehte........... May u get soo soo much of blessings,likes and subscribes.... THANK YOU for this efforts....hit like those who agree for alakh sir....
Baat to aapne sahi ki bhai
@@FARHAN-gg6bo hai na?
Or @Khan sir bhi nhi khete
Best of luck for 2023~24 batch for icse examination ❤
*For STUDENTS* Jo bhi student hai......Hamare Alakh sir ke liye ek Thank you zaroor likh diya karo comments me🙏
👍🏻🐉👍🏻
Physics wallah corporation
Thank you
Nai
Thanks
The best teacher I have ever come across
You saved my life. I was fed up memorizing the colours of compounds and then I got this video.
Now I am able to tell the colour of any compound.
Thanks sir
Bro same
@@abhaygusain9491 abhi bhi kaam krta h ?
@@Ausgau62735 bro science facts hota h aur facts change nhi hote
Thank you so much 😢... I was stugiling for this
Who guys are watching in 2024 like
Uncle:beta lockdown me bhi class shuru hai
Me: ha.....
Uncle:kitne bacche aate hai class me
Me :2.5million .....
Uncle:fees kya hai class ki
Me: zero..... GST mila ke....
Uncle:to yeh lockdown to tumhara kicch nahi bigad sakta
Me :a year lockdown cannot change my future😂😂😂😂😂😂😂
Lol
Lol
Biggest LOL
lol
Teachers except Alakh sir : Am I a Stupid
Me : LOL
who is watching in 2024
Sir aap kisi bhi topic ko kitna simple kar dete hai. Respect from heart and you are doing a great work. May God reward you.Ap ko subscribe krke apne ko fayda hai.
Sir, bt in anion 6 elements are there which have colour
1)Cu
2)Mg
3)fe2+
4)fe3+
5)zn
6)pb2+
Congratulations sir...
1M!
Hats off to your effort sir.
3.60 m ho gye sir ke
3.63. Ho gye
Which class r u shrishthi
4.27 m ho gai
Sristhi pandey i know u
2024 Guyzz Vote here❤️🤞
2024 me hu bhai
Sir your way of teaching a ch in 19 min is awesome 🤩
19 minutes me sab explain kar diya..great!!
Currently I am in 10th icse.. So I'm planning to prepare for Jee Advanced from 11th.. I wish to receive coaching from Alakh Pandey Sir (not online).. But the problem is I'm from West Bengal.. It'd be difficult to recieve the coaching offline from him..
1:17. Sir kya khane bana rahe ho cooker mai?
What a brain u have...😮👏👏👏
Koi shak hai usme
Rafat Faiz ka matlab Kya hota hai
@@kirannegi956 h
@@abhinavhebbar4146 no
Yes 😲😲
Exam se ek din phleyy pdhri hu 😂 pure saal scll aur coaching ki but board se ek din phleyy alakh sir hi top krwa sktey h
Kar liya top?
Kasam se sir app dil me ghush karke samhajte ho...🙏🙏🙏🇮🇳😊🙏
Who watching this 2024??
😅😅😅😅
Alakh sir एक ऐसी कहानी है जिसमें हम प्रयास देख रहें हैं कामयाबी पाने के लिए (time before 3-4 years) और हमारी ये खुश नसीबी है कि हमें इस कहानी का परिराम भी पता है जो है बेसूमार सफलता और बेसूमार अपने छात्रों का प्यार (present situation)🙂
Pls Help to hit 1 k like 😮
Tomorrow is my chemistry boards 2024
me from 2024 batch am watching this thank you so much sir
Sir a hearty thanks to you .I am student of 10th board for 2021 and your valuable 19 minutes video of 2017 is valid even today in this lockdown, I completing my full syllabus by seeing your videos which are very helpful to me.
A Salute to you sir ,you are doing a great job especially for needy students .
I will repay your work on one fine day...
Tomorrow is my chem board exam 2023. The physics paper was a bit difficult and the most hard paper in 10 years. Not a single thing came from consise. I am trying my best for chem.
@@flashcodm997 for us it was reverse .....we had chem paper as most difficult till now , and tomorrow I have my physics exam 2023
@@MJAY100 oh looks like we the post COVID batch is unlucky.
Sirf 19 minute me agar chemistry samaj a gai ho to like karo
Bhai like kiya video ko😜
par bro bromine to reddish brwn hoti he na
@@robelis.135 bromine gas bro
@@shivenpatel970 oh
thanks
is this still helpful for 2020 boards ?
He is angle in disguise
But he is healthy
But he is health
How did you got 2lak sub😮
Tomorrow is board 2024
All the best everyone 🙂
Sir thank youuu ! Tomorrow is my chemistry ICSE BOARD exam
You have explained in easy method you are best teacher sir🥺😀😀
Same!!
Same
@@parwindersingh1607 u from which school??
Hello
2024...
Me ,you and othu
Who is watching in 2024 😂
Go and read first monkey
Hum
You are the best Teacher sir in terms of Everything
Nice
This man is the beat of many hearts
Yes itz a fact
Me thinking : sir will teach according to my book
Meanwhile sir :teaching from universal heart ❤(no book needed )
2024 batch 👇
A trick for you .......Na oh ya NH4 OH excess me hoga to jinka colour hai already jese ke ferrous ferric and copper voh tab bhi solube nhi honge aur baki ke jese ke lead nitrate zinc nitrate calcium nitrate sab solube ho jayenge
WOW! no cuts and pause continuing until 19 mins. Excellent teacher
Sir you are the best Matlab #faaaad plz make a video on important question of chemistry & physic of class 10th 2019
No one can make chemistry so easy except him. Thank you so much sir for your efforts and dedication towards us. We are grateful to you😊💖
Kal hi paper haii
Haan😢
Sir you are really great, i had a test tomorrow and i was paranoid but thanks to your teaching this chapter was done in 20 minutes
What about mn
Sir not only 3 there are more coloured cations in our book there are 7
That was amazing really so many tricks are there in this lecture
m.th-cam.com/video/UOAgHS1hWD0/w-d-xo.html
Sir 2:02 there are three coloured anion
3) Cr04^2- colour is yellow and anion name chromate ion
Thank you so much sir this video helped me a lot 🙏🏻
Sir i have a doubt......
why cant we detect color of OH compounds?
Why
Because cation are formed in solution only and color of solution is due to all things present in it
Are you ARMY??
No
Afroz Shaikh yess I am
video started in 0:15 .Unlike vedantu
Haa na woh log timepass karte bethte h
Totally agreed 👍
5 HRS TO GO ICSE 23 CHEMISTRY SIR HUM SAB STUDENTS PE APNA ASIRBAAD BANAYE RAKHNA
🖐🏻
Watching this in March 2k24😅
Best youtuber waiting for your 10 million
Colourless salt solutions : forms white precipitate (hydroxide).
Blue salt solution : pale blue ppt.
Green salt solution :dirty green ppt.
Yellow salt solution : reddish Brown ppt.
( all ppt. Above mentioned are hydroxides)
☺️hope that it is helpful
Osm sir hats off to u i understood everything of this chapter with 20min just coz of you 😍😍 thanks aa lot sir
Thank you sir god bless you❤
Thank you sir.......awesome class.....i was able to learn this chapter clearly and easily.....thanks a lot...👏👏👏👏👏
😚
Amazing sir ♥️♥️
Wowwwwwwww thank you so much sir...I was preparing for my boards n ...I was very weak in chemistry but now after watching all your videos I'm confident to write the exam...credits to you sir thanks alot
How many are seeing now this for tomorrow exam
Like
amazing point of all his videos are that he never pleaded to like subscribe or share this video and never waste single second
In accordance with our books there are 7 coloured cations.
In Selina Concise 6 are coloured
It has been 6 years old video from 2024 but the best of 6 years
I liked ur teaching. I wished u we're my teacher
Who is here before semester 1 chemistry exam 2021 😁
;D Me
Waah Sir ! I didn't expect that this chapter will be so easy to understand !
Thanks a lot Sir !
It helped me a lot !
Ye kya hua? 🥴🥴🥴
Saal bhar yaad kiya yaad nhi hua aab bas 19 min me khatammmmmm...
😂
Great explanation sir , aap byjus band karva denge
Ab toh kr bhi diya🙂
Fe2+ (green/light green)
Fe3+ (Yellow)
Cu2+ (Blue)
Mno4 1- (pink/purple)
Cr2O7 2- (Orange)
Watching this video 14 hours before exam is supremacy
Yo
Earlier school was a place for study and TH-cam for timepass and now in school we do timepass and on TH-cam study 😂
Sir how we will identify that this is ferric and this is ferrous plz tell sir
Ferrous is fe 3+
@@debasishmahapatra6501 ferric is 3+ , ferrous is 2+
Thank You so much sir!!
This made remembering the reactions and the precipitates so easyyyy !
Sir you are GREAT .........you cleared my all doubts ..at the last moment our teachee left the school but becoz of U I have covered ally physics and chemistry topics..........Thank u sir
Sir You are Awesome
Aap learning ko ekdum simple bana dete ho
Hats off to your effort and yout teaching skills
Congratulations Sir 1 million KE liye 🥳🥳🥳
Sir app vedantu bannd karva denge 👌👌👌👌👌
sir ur the best teacher for sceince and also best youtube channel for class 10th , u helped me a lot sir thank u so much sir
You deserve Oscar award thank you sir ❤️
Well explained .
Thank uh ..
Yaar yu r so beautiful
@@amankumarjyotishi6682 real profile nhi yaar 😂😂
Hell9
@@amankumarjyotishi6682 he bHagwan utha le re😂😂
Are mere school se hi pass out ha
Mount Carmel School Gaggal
Himachal
A day before pre boards 🥲Thank you so much sir to clear all my doubts 🙏
Thankyou so much sir! THIS CHAPTER WAS VERY CONFUSING FOR ME UNTIL I SAW THIS VIDEO 😁😁
Yaa too many colors
Thank u so much sir .my god I have no words for u.....
Sir you are great....thanks a ton
I wish we had teachers like you in our school..
Thank you so much sir, no one has ever taught this chapter so well
Sir please make a video on some of the most important questions for boards...please sir
Same
Plz sir
Plz. Make sir
Aap Har video me yahi bolte ho
Haa bana do
I have a doubt sir.....as you said the colour of cupric ion(charge=2+) is blue and the colour of oxide ion(charge=2-) is colourless then how come CuO is black ....it should be rather blue
Who is watching in 2024😏👇👇🙋
Analyatical sab chapters Mae divided hai
Luv ur teaching style sir, itna hard chapter ko just 19 mins mein samjha diya😍😍
Who is watching a day before pre board😂😂
Best video ever on analytical chemistry...if u guys agree hit like👇👇
Best teacher ever I studied from
Sir kash aap hamare school me hote 😀😀😀
sir, i really like your way of teaching....n....i really respect you........i am a 10th icse board student and mne apna physics syllabus apki videos dekh kr hi complete kiya h............you are the best🤩
Ooooooooo😱😱😱😱sir you reached 1M sub keep going we will support you
😂lol 4.58M
I am having a test tomorrow and I haven't studied anything. By seeing this video i cleared all my concepts. Very good channel
Morrow is 10 board exam
😃😃😁
Same
Morrow kya hota hai bhaiya
@@angelkacchap8779 tomorrow
Amazing 👌😍❤️ video watching now before exam and I have understand everything from this chapter thank you so much 🙏🙏🙏