« first day (234 days earlier)      last day (2295 days later) » 

06:50
0
Q: Nitration of anniline

Avnish Kabaj Anniline being basic in nature is protonated by the nitrating mixture. Which makes it a withdrawing group with a very strong -I effect. On the basis of this inductive effect the major product can be deducted to be paranitroanniline (am I correct?). After the protonated anniline has been ...

@Abcd @IceInkberry @Jasmine @EshaManideep
Halp plis
@AvnishKabaj for the am I correct part, yes you are correct. It's a dupe of another question on SE. Search "why is annilium ion is para directing"
17
Q: Is the ammonium substituent (-NH3+) really meta-directing in electrophilic substitution?

raviIf we make a resonance structure for the anilinium ion, with positive charge at either the ortho or the para position, we get a pentavalent nitrogen, which is not possible. So, how is the $\ce{-NH3+}$ group meta-directing in electrophilic aromatic substitution reactions, e.g. in nitration of anil...

> After the protonated anniline has been nitrated what causes it to lose the proton considering that no base has been added?
@AvnishKabaj this is also simple. It becomes a relatively strong acid after nitration so it can easily lose the proton to the HSO4- base
Remember that equilibrium always favours weak acids
@AvnishKabaj are you deleting your question or should I answer it on main
 
1 hour later…
08:14
Thanks @Abcd
Deleting
 
4 hours later…
12:17
@AvnishKabaj @Abcd @IceInkberry do you know how zwitterion effect affects acidity character?
12:37
@Jasmine Nah, never heard of it. I have heard how 'pH affects zwitterion'
@Jasmine this concept does not exist
@Abcd ?
@IceInkberry ?
I saw a question:
In hint it is given 1 is exception due to zwitterion effect
13:04
ortho effect doesn't apply to zwitter ions
It's one of the exceptions
is the order of acidity in decreasing order 2>4>3>1?
 
2 hours later…
14:52
^ Yeah, you'll find that in GOC.
15:17
Do we have access to the MyPat Open test papers after the open test? (If we attempt it)
15:30
@IceInkberry yes
@Jasmine intramolecular hydrogen bonding in 1
3 should be strongest
3>4> 1>2 I would guess
Now let me google :p
pKas:
4-aminobenzoic acid: 2.38 (at 25 °C)
m-aminobenzoic acid: 4.81 (strongest acidic form) 3.27 (strongest basic form)
o-aminobenzoic acid: pKa: 2.14
benzoic acid pKa: 4.20
so answer is: 1> 3> 2> 4
no idea about this thing so confusing
15:47
@Abcd what??!!
How to get paper
Paper is not available in pdf form
I tried to get chap test paper but couldn't
just in online format it is there
@Abcd which form
Can I get chap test paper and aiolts paper
How do I get
@Jasmine post request there to person to post pdf of papers
I have already requested but they want more requests to execute this thing
@Jasmine Please request them through customer service option
That please make pdfs available
15:50
How to access them in online format ?? @Abcd
9
Q: Why is benzoic acid a stronger acid than 3-aminobenzoic acid?

Prajwal ChauhanWhy is benzoic acid a stronger acid than 3-aminobenzoic acid? Obviously at meta position, only negative inductive effect will operate. But, how does that make it a weaker acid than benzoic acid?

@Jasmine idk about chap tests but AIOTS is availbale after test and IF you ATTEMPT it.
Ok
@Abcd same thing 'zwitterionic' meaning is what
@Jasmine no idea man leave it
Left it
@Abcd Okay, thank you.
 
1 hour later…
17:25
I made a two week revision schedule for NSEP & NSEC. Can somebody look through it and make any suggestions. Thanks.
https://docs.google.com/spreadsheets/d/15TtylPlu4GbTIgfoKaInvZ_zS0oam_AxoXoieH7o__w/edit?usp=sharing
I can mail you the pdf if somebody wants it :)

« first day (234 days earlier)      last day (2295 days later) »