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Harikrishnan M

 JEE Chemistry Club

For Mathjax see: chemistry.meta.stackexchange.com/questions/89/…...
Harikrishnan M
May 21, 2024 14:22
@PandaScientist rearranged one, it is.
Harikrishnan M
May 21, 2024 14:21
All the best one and all!
Harikrishnan M
May 21, 2024 14:21
Best wishes to one and all who is going to give JEE Advanced on Sunday! Remember:

This long journey of 2 years has been rough, maybe unyielding, but all of us are one step away from joining the most prestigious colleges in Asia, let alone India. What's between us and IIT is this.

This is more of a mind game, less of an exam - this is important to note.
Harikrishnan M
May 1, 2024 17:29
Your thoughts?
Harikrishnan M
May 1, 2024 17:29
Hey all, I did try this question, and my thought was that since the stability is more for a less sterically-hindered carbon, a lesser-sized group like OH should be able to make this more stable.
Harikrishnan M
May 1, 2024 17:28
user image
Harikrishnan M
Apr 14, 2024 13:32
How's the 2nd attempt guys? Just flopped chemistry and got 174 in all - 6th april S1. Actually speaking in my centre atleast attendance was less
Harikrishnan M
Mar 30, 2024 00:55
Actually I need to get mains right before even talking about advanced.!
Harikrishnan M
Mar 30, 2024 00:54
My percentile was 97.08 despite scoring 197
I was on 27 Jan Shift 1
Harikrishnan M
Feb 2, 2024 00:47
And in your second statement about orders, I 100% agree with you... some orders are stupid. +I and -I orders mainly - too much to cram, no logic at all present...
Harikrishnan M
Feb 2, 2024 00:45
@GauravSaiMaddipati actually I am looking for a B. Tech degree only. But I would wanna learn more in chemistry side by side
Harikrishnan M
Feb 1, 2024 15:01
And the safety net is ofc the NITs and IIITs, not mentioning the GFTIs
Harikrishnan M
Feb 1, 2024 14:57
@GauravSaiMaddipati dont tell I should directly write adv. 90%ile is a sure bet, but I want some safety net for the climb to Advanced
Harikrishnan M
Feb 1, 2024 14:57
Aaand lots of -ve markings
Harikrishnan M
Feb 1, 2024 14:56
Well I did write NSEC, screwed up in it, cuz it was in Nov, and I was focusing on JEE's new syllabus
Harikrishnan M
Feb 1, 2024 12:45
Wbu @GauravSaiMaddipati ?
Harikrishnan M
Feb 1, 2024 12:44
Hoping for a good %ile.. tho with my performance ig I might get 99+
Harikrishnan M
Feb 1, 2024 12:44
Went good
Harikrishnan M
Jan 23, 2024 07:34
Any JEE (Mains) '24 candidates here?
 

 The Periodic Table

Haikus are awesome / Chemistry's even better / So pull up a chair
1
Harikrishnan M
May 5, 2024 01:28
Before I had 9 or so questions here.... but now it's 4
Harikrishnan M
May 5, 2024 01:27
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Harikrishnan M
May 5, 2024 01:27
Roomba did it, actually.
Harikrishnan M
May 5, 2024 01:26
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Harikrishnan M
May 5, 2024 01:25
@Mithoron I never deleted any question!
Harikrishnan M
May 4, 2024 12:59
Ok, I get you @M.A.R. and @Mithoron! Thanks.
Harikrishnan M
May 1, 2024 17:31
I've not put it up in the main site for this is a mundane HW JEE question.
Harikrishnan M
May 1, 2024 17:31
Hey all, I did try this question, and my thought was that since the stability is more for a less sterically-hindered carbon, a lesser-sized group like OH should be able to make this more stable.
Your thoughts?
Harikrishnan M
May 1, 2024 17:30
user image
Harikrishnan M
Jan 23, 2024 07:32
7
Q: Why do ketoses undergo dehydration more rapidly than aldoses?

Samardeep singhI was reading about Seliwanoff's test and Wikipedia mentions the principle behind this test This test relies on the principle that, when heated, ketoses are more rapidly dehydrated than aldoses. Well, as to what might be the reason behind the rapid reaction of ketoses, my conjecture is that as ...

organic-chemistry reaction-mechanism biochemistry
 

 Discussion on question by RMS: Derivi…

Imported from a comment discussion on chemistry.stackexchange....
Harikrishnan M
Mar 18, 2024 00:50
@RMS Edit your question in order to rectify it.
Harikrishnan M
Mar 16, 2024 09:51
Acidic medium is factually wrong as the electrolyte used is conc. NaOH solution!
Harikrishnan M
Mar 16, 2024 09:51
Can you please redo your derivation and post given these equations?
Harikrishnan M
Mar 16, 2024 09:51
@RMS please verify your fuel cell equation: $$\ce{Anode: H2 + 2OH- -> 2H2O + 2e-}$$ $$\ce{Cathode: 1/2 O2 + H2O + 2e- -> 2OH-}$$ they don't match. This is from my NCERT textbook
Harikrishnan M
Mar 16, 2024 09:51
I also thought the same...
Harikrishnan M
Mar 16, 2024 09:51
@RMS I had told that after you took that assumption of $\ce{[H+]^2}\approx\ce{[H2]}$ - that's still kind of absurd. But still... that alone has to be verified.
Harikrishnan M
Mar 16, 2024 09:51
@RMS please check the chemical element symbols. They are not supposed to be in italics. Would suggest that you use $\ce{...}$ to represent all the symbols. $\ce{H2O}$ is written as $\ce{H2O}$ for example.
Harikrishnan M
Mar 16, 2024 09:51
Yes. In your concentration equation, take $\ce{[H+]}$ concentration as 1.0 M. You will get the concentration analog of your pressure equation (considering reaction takes place in a closed container, which is true in the case of the fuel cell)
Harikrishnan M
Mar 16, 2024 09:51
Straightaway interchanging the concentration and the pressure terms ($P=CRT$, from Ideal Gas Law, given RT is constant) will give you the final result. So I would say that your derivation is correct, and matches the actual situation.
Harikrishnan M
Mar 16, 2024 09:51
Assuming $\ce{H+}$ ions in gaseous form? Interesting... Giving you a reminder that in this case you can mix up pressure and concentration terms, while doing Nernst. You'll be considering only partial pressure of $\ce{H2, O2}$, water of course is a liquid and conc. is taken as 1, and take $\ce{[H+]}$ conc as $\pu{1.0M}$... would that be possible?
 

 Problem Solving Strategies

General chat for high school physics. For MathJax see meta.sta...
1
Harikrishnan M
Feb 2, 2024 00:50
@AmitRai 1) read the question and get all the concepts required. 2) See the depth of the question. 3) Start solving. Basically ppl have a prejudice that questions that look long are difficult. Get out of it.
 

 Discussion on question by Vivaan Daga…

Imported from a comment discussion on chemistry.stackexchange....
Harikrishnan M
Dec 25, 2023 11:01
en.wikipedia.org/wiki/Fajans'_rules Check this link.
Harikrishnan M
Dec 25, 2023 11:01
Okay! I get your dilemma now.
Harikrishnan M
Dec 25, 2023 11:01
If he knows then the rule itself will be the solution to the problem.
Harikrishnan M
Dec 25, 2023 11:01
Can @VivaanDaga first state whether he knows the Fajans' rule?
 

 Linear & Abstract algebra

For any discussion concerning linear, abstract or even element...
Harikrishnan M
Dec 23, 2023 08:44
I have not learned them
Harikrishnan M
Dec 23, 2023 08:44
Yes @MartinSleziak. I actually do not know about Eigenvectors
Harikrishnan M
Dec 22, 2023 11:21
en.wikipedia.org/wiki/Commuting_matrices
I saw this article, but I can get neither head nor tail of it, as I know whatever is there in the pdf in this link:
1) ncert.nic.in/ncerts/l/lemh103.pdf
2) ncert.nic.in/ncerts/l/lemh104.pdf
Can anyone do the explanation for dummies of this Wiki article (the terms used and their definitions)?
 

 Math Meta Chat

Chat-room for Math Meta stuff (for moderator-related stuff go to
1
Harikrishnan M
Dec 22, 2023 11:20
Oh sorry
Harikrishnan M
Dec 22, 2023 10:34
en.wikipedia.org/wiki/Commuting_matrices
I saw this article, but I can get neither head nor tail of it, as I know whatever is there in the pdf in this link:
1) ncert.nic.in/ncerts/l/lemh103.pdf
2) ncert.nic.in/ncerts/l/lemh104.pdf
Can anyone do the explanation for dummies of this?
 

 The Practice Room

General discussion for music.stackexchange.com
2
Harikrishnan M
Dec 21, 2023 10:22
And thats on the Nadhaswaram, do search 'Carnatic English Note'