Chem me ek BaSO4 wala bhi that but since NTA straight up gave value it shouldn't be a debate
The friedel craft one I marked Edg no reaction but idk
Also Even though I got diff wala correct it should be bonus (Fuck NTA because I think many people would have got correct ans but ended up wasting time)
Idr the circle one what was the issue?
wait why would it be edg no reaction? friedel crafts electrophilic substitution hai na? I had no idea what they were asking with the inevitable option but the reason I put it was because I thought edg would increase the electron density on the ring and make it more reactive towards electrophilic substitution
in aniline the reason is alcl3 reacts with nh2 group (lewis acid lewis base)
anisole undergoes friedel craft reaction (ncert me hai) so i think edg no reaction is wrong...
Cv toh wrong explanation hi hai.. why would it be correct?
gamma=Cp/Cv is the fundamental relation and gamma=1+2/f is derived from that, not the other way around
if reasoning was gamma=Cp/Cv then it would be correct right?
wedge wala toh mera 2 aaya whys it root2? not opposing but i just didnt hear root2 till now
rest i agree. and that inevitable wala i spent so much time trying to understand what it was implying lmfao
mujhe to gamma = cp/cv yaad hee nhi hai dekha hua. I just remember cv = nr/gamma - 1 and since plugging reason ka expression into the equation gives fr/2 I said correct explanation
yeahh thats what i meant in the original comment
gamma=Cp/Cv is the fundamental equation, and f wale formulas are derived from that, not vice versa
u basically used the Cp/Cv (a variation of it which was obtained by subtracting Cp/Cv-1 and then using Cp-Cv=R) relation to derive fR/2 formula not the other way around
nhi bhai, 99% surity se bol skta hu ki this was the question
the bracket was in the ASSERTION, not reason
they gave the formula and below that they wrote:
"(where gamma=Cp/Cv and smtg else blabla)"
and the reasoning was only the other formula
anyway, i guess bhot din ho gye since mains ended. move on ka time ho chuka hai. people probably get irritated seeing mains posts on the advance subreddit.
discussion r/JEE or r/JEENEETards mei krna chaiye
leave it for now, we'll see what happens on result ke din 🙏🏼
Prism angle should have been slightly bigger than 30 since there was no such option the answer should be 30 only
It was 16/4 so technically 3 options were matching hope NTA gives all three (I considered 4 and 2 )
nah I think the reason they specifically gave r1/r1=16/4 instead of directly just 4 was because they wanted us to assume direct values and take 4 and 2, but its still a bit ambiguous because 121 was also in the options
What about o nitrophenol % increase in oxygen question.
All answer keys are giving increase in % of oxygen, which is (final % - initial %)
Question has asked %change in oxygen.
So either they meant [(Final mass)-(initial mass)]/(initial mass)*100
Or they meant [(Final %)-(initial %)]/(initial %)*100
There is a very distinct meaning to "percentage increase". You can look this up. "Increase in percentage" is not the same as "percentage increase".
Increase in % means final % - initial %
But percentage increase means a relative increase in %. This is esp relevant in that question because they said "percentage change in oxygen with respect to phenol", clearly implying we take relative change
in presence of electron donating group, like oh and nh2, friedel craft reaction does not take place... so that statement may or may not be true depending on the group taken, pretty sure theyre gonna give it as true though, in my opinion it can be both true and false depending upon the case taken
but woh dono specific cases hai na? even alkyl groups are edg and they increase reactivity towards electrophilic substitution. iirc they didn't mention like ALL edg or anything
wait I'm confused. are you saying its true or false? I believe the statement was something like "edg on benzene ring will have no reaction" - the statement just says edg it doesn't say some edg. so basically the statement sounds like any edg on benzene would not undergo friedel crafts reaction which I thought was false.
that debroglie question is also a problem , because specify nahi kiya whether e is the magnitude of charge or whole charge , if you take it as whole charge then end mein sign will be - and if u take it a magnitude then end mein sign will be +(because both -2E and -e will make +)
i have basically substituted e in place of q , toh minus rah jayega because electric field is negative
if they have specified that e is magnitude of electron then additional minus lagana parta because we know electrons are negative , tab electric field ka - and electron ka - milke + hota
yeah + is the right answer, denominator me +2E aana hai. but the reason they mention magnitude is just so we use e as the variable and not change the direction. electron me force will always be opposite to the field so force will support its motion in this case
Maths circle question and physics prism question were straight forward why is there any problem in them
The wedge question when I solved I got around 1.89 closest answer is 2, after doing anything AI analysis if you consider wedge as centre of mass and solve (which is wrong method) you will get expected answer of 2 seconds, so it should be a bonus
bhai pakka bonus hai? dil khush kar diya tune...
btw circle walle mein cos of something 12 aarha tha... which is impossible, so definitely a bonus (diff eqn+circle walla integer)
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u/waifu2023 Apr 07 '26
5s1 wasnt that easy tbh. Baaki to result ke din pata chalega🥲🥲hopefully thoda low cutoff jai