What a wonderful lecture. I fully comprehend the details in the lecture. Thanks sir. I would like to know if you have presentation on kjedahl principle and instrumentation as an analytical instrument
Sir....u teach sooo welll...n i wish I was ur offline student but...ur voice is very light can u speak more loudly n got many questions to ask u aswelll.....
4-5 Books follow karta hoon like Pavia, Gray and Calvin, Kalsi, Silverstein, PSP etc. But ab mera khud ka book aata hai. You can download "Dr. PK Education" app from Google playstore and visit the store tab for various books available.
In UV-Visible spectroscopy, when molecule impinged with electromagnetic radiations (mostly UV-Visible radiations in UV-Visible spectroscopy), the electronic transitions occurred within the molecule. The compound is colorless in UV region whereas it is colored (i.e. seen with eyes ) in the Visible region. Mostly the conjugation of the chromophore (many times double bond or aromatic system with alternate double bonds within structure increases the length of chromophore) which gives color to the compound. eg. beta-carotene a polyene having 11 alternate double bonds. As the length of conjugation increases, the energy required for transitions will be less, due to which compound absorption wavelength shifts towards longer wavelength means towards the visible region. This is also the principle of many chemical derivatizations/colorimetric methods. The transitions prominent within visible region is pi to pi star.
You mean minimum lambda max? The shorter wavelength of absorption will depend on the chromophore of the compound. Which transitions will occur in the molecule when it has interacted with UV-Vis light. e.g. Alkanes has the shorter wavelength of absorption (high energy is required) to cause sigma to sigma star transition. Less amount of energy than alkane is required for alkene compounds as pi to pi star transition requires less amount of energy. So, it is absorbed at a longer wavelength as compared to alkanes.
Thank you so much sir.very nice teaching.You divide the all part of description and math calculation.That is very very knowledgeable.
Sir you are excellent teacher
And aapki sabhi video helpfulha sir
Pushpendra you are remarkable, truly magnificent & awesome!
Thanks Roger
What a wonderful lecture. I fully comprehend the details in the lecture. Thanks sir. I would like to know if you have presentation on kjedahl principle and instrumentation as an analytical instrument
Just search Kjeldahl method by Dr. Puspendra in youtube
Sir,thank you for this video.This is so help me.Hope you always healthy and still can make videos who everyone get knowledge from u.
Great class.
Thank you sir for such a great class ,it really helps me a lot.
Thank you for the appreciation.
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Good Job Pushpendra Sir
Hello sir UV visible spectroscopy ke saare doubts clear kr die u r god of analysis pharmacy🤩
sir your teaching is awsome sir thank you very much keep going on.....
Harikrishna Balaboina
Thank You for the appreciation.
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Thank you sir.
This video really helpful.
Great explain sir 🙏🙏 outstanding sir 🙏🙏🙏☺️
Maja aa gaya👌👌
Bahut hard!!!!
sincere thanks to your amazing classes
Thank you for the appreciation.
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Sir you are great,
Sir your lectures are beneficial
Thank you for the appreciation.
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Sir....u teach sooo welll...n i wish I was ur offline student but...ur voice is very light can u speak more loudly n got many questions to ask u aswelll.....
Sir plz provide a table for conversion Ang.. To cm and many more
Of course sir I try my best.
Awesome sir😊😊
Well done sir... U r a gud teacher.👌
Very useful for me sir... Thank u so much sir
sir, why the signals are broded during the measurement?
Nice explaination sir ur explaination is useful to pharma students 🙏🙏🙏
Very Useful...Thank You Sir 😊
speed of light m /sec hoga na aapne cm /sec kyu kiya
Please the power of 10 also, we can write in nm, mm, cm, m, km etc. But only we have to take care about power of 10.
Thank u sir for the lovely class
Tq so much sir...really its help to me lot.
Thanks a lot sir
Thanks a lot😊
thanks sir ........from Pakistan......
Sir,velocity of Em is 3×10*8m/s
Both are correct/same.
I have written in cm, if you will convert in meter then it will 10^8😂
Thanks alot sir.... helped me alot👍
for people who know the basics dont waste time in this video and watch the 2nd and 3rd part
True 👍🏻
Who knows basics, they should watch next part onwards.
But this category will be less than 10% 😍
Good one 👍
Hi everyone..agar koi e baataye ke e sir konsa book follow karta hee spectroscopy keleye..
4-5 Books follow karta hoon like Pavia, Gray and Calvin, Kalsi, Silverstein, PSP etc.
But ab mera khud ka book aata hai.
You can download "Dr. PK Education" app from Google playstore and visit the store tab for various books available.
@@pkclasses100 sir thanks for your reply your lecture is so awesome and so useful.thanks Dear Sir
@@ZubairKhan-no2bk If you know hindi then watch latest video series of UV-Visible Spectroscopy.
@@pkclasses100 okk Dear Sir
Thanks a lot sir....sir,can you pls make a similar playlist for quantum theory(b.tech)...pls
Sir, please make a video on UNIT CONVERSION.thank you sir. 🙏
Why bands observed in uv and peaks in nmr
Sir, please make a video on IR spectroscopy
Abdul Jabbar I will try to upload that video as soon as possible. Most probably by the end of March or starting of April 2018
@@pkclasses100 sir I have a question could you please help me?
Thanks sir good explain ✌️🤘👍❤️
Are these notes helpful for MSc in forensic science???
Yes
Thank you so much sir..
Hi
Hi
Is this script would be preferable for ug ???
Yes
Which transitition are responsible for the colour? Please ans.....
In UV-Visible spectroscopy, when molecule impinged with electromagnetic radiations (mostly UV-Visible radiations in UV-Visible spectroscopy), the electronic transitions occurred within the molecule.
The compound is colorless in UV region whereas it is colored (i.e. seen with eyes ) in the Visible region.
Mostly the conjugation of the chromophore (many times double bond or aromatic system with alternate double bonds within structure increases the length of chromophore) which gives color to the compound.
eg. beta-carotene a polyene having 11 alternate double bonds.
As the length of conjugation increases, the energy required for transitions will be less, due to which compound absorption wavelength shifts towards longer wavelength means towards the visible region.
This is also the principle of many chemical derivatizations/colorimetric methods.
The transitions prominent within visible region is pi to pi star.
Sir plz solid state ke bhi video dale
Sir medicinal chemistry lecture hain kya aapke ?
Abhi nahi hain
Nice video sir
Thank you Digambar 👍🏻
Sir plz make video on green chemistry
SIR please make one lacture on difrence b/w IR and FTIR and predict peaks with some example.
In FTIR spectrum is processed by mathematical equation for better resolution. That's all.
And Videos of both the topics are already uploaded. Please watch Infra Red Spectroscopy playlist in my channel.
Sir, would you please use a microphone? Because, sound is very low to hear....
SIR PLEASE MAKE A VIDEO ON STEREO CHEMISTRY
Harikrishna Balaboina
Surely I will upload, but after completion of analystical chemistry.
Super sir super
Thank you for the appreciation.
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Watch Uv Vis spectroscopy In Hindi On "BaaYo" Channel.
Very nicely explained #Aarti. Keep it up.
Thanks.
Sir, how to predict that which molecule have the minimum €max in uv spectroscopy..
You mean minimum lambda max?
The shorter wavelength of absorption will depend on the chromophore of the compound. Which transitions will occur in the molecule when it has interacted with UV-Vis light.
e.g. Alkanes has the shorter wavelength of absorption (high energy is required) to cause sigma to sigma star transition.
Less amount of energy than alkane is required for alkene compounds as pi to pi star transition requires less amount of energy. So, it is absorbed at a longer wavelength as compared to alkanes.
Got problem in solving last part of multiplication s
Dear sir , it's not available in words about principle of uv
Nice 👍👍👌👌
Excellent
Plz make a video on pharmaceutical interview que related all
Very nice
Sir pls explain uv Spectra of conjugated camps and geometric isomers..🙏
Sir ,upload vedio on organic synthesis.
More and more video uplod sir
Sure.... Till now you can watch available videos.
Thanks
sir nmotes bhejiye na please request
Sir make video for x ray diffraction
Saravanan Ram
Definitely I will upload in future.
Okay..bt sir its not properly visible..
Camera quality was not good at that time. This was my initial videos.
Please check out latest videos on other topics. Hope you will find useful.
Thank you sir
Thank You.
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Thanks for teaching me spectroscopy
where's introduction of UV spectroscopy????
All you did is described the sub parts of that???
Sir echoing ho Rahi sound me . please remove these sounds
This video is very old without mic, please watch latest videos.
Tnx sir....
Is this organic chemistry
No
this is analytical chemistry
sir too much ads very annoying
Please try youtube premium. It's free for few months as a trial.
Sir g phaad
Lengthy lectures..😑
Try our latest lectures.. they are comparatively short.
Thanks..
May I have your email addresses please
Pkclasses100@gmail.com
Hi everyone..agar koi e baataye ke e sir konsa book follow karta hee spectroscopy keleye
Thanks sir
Thank You for the appreciation.
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Yes sir... Sir make a video for medicinal chemistry subject
I will try in future
Thankyou Sir
Thank you sir