Hello bhaiya!

Hi ! :-)

long time no see

After long time :-)

how're u doing?

@PandaScientist I have to ask you !

@PandaScientist Just going

@KavinIshwaran umm...annual exams and practicals. they really engaged me. for a person who never attended school seriously, it was difficult

lol the past is gone

Oh I forgot to ask , how was ur exam?

@PandaScientist Just don't pay attention to it :-)

after all you are just entering 12th

@PandaScientist Went well. :-)

ye, that's what i think and keep going. today was PTM. im free from now !!!

Pay more attention to JEE !

@KavinIshwaran that's greaaatt. how much did u score?

I which ? Mains 1 ?

@KavinIshwaran aiyo! ive two tests this week {coaching}

@KavinIshwaran yes yes

If yes, then I have to take back my word. it is a disaster

what were u referring to?

I thought you were asking the recent boards

boards, I heard they did something devious in physics exam?

@KavinIshwaran oh so ur preparing for the April attempt!?

My mark vs percentile is just not sane. As a person who wrote on 29th

@PandaScientist No I am doing Adv

@PandaScientist It was too lengthy

I have to admit 95+ would be God's grace

@KavinIshwaran 29th was difficult , wasn't it?

@KavinIshwaran aah I remember seeing the news

It was relatively tough. But was an easy 200+ for me. But I put unnecessary pressure on me in the exam day and it totally reduced my flow !

I was still confident but mark vs percentile for 27 and 29 simply didn't match

@KavinIshwaran I seldom score 200+ in coaching tests but I guess jee is really different!

meanwhile me struggling my life with organic chem

I can help if I can :-)

Between, which coaching ?

fiitjee

I'll get back in a second

Ok :-)

random kid got bullied by a dog , hafta go to save him

Poor thing !

This is it

@KavinIshwaran yoo bhaiya?

Hi. Just got back :-)

@PandaScientist Options ?

(methyl groups at o

methyl groups at p

Methyl groups at m

Ethyl group

It is going to be para methyl toluene

Correct!

now explain plsss

Now. conduct nitration on the compound I said

If you get mono nitration product, the NO2 group is going to be at any one of the four places which can be attacked, Yes ?

@KavinIshwaran yes

Oh so three dinitro isomers ?

In those 4 places wherever the NO2 attacks, it will give the same compound

But can't the same be said about ortho toluene ?

No

After first Nitro attack, 3 places remain ?

You can just draw the structures and you will immediately see why it is the case

@PandaScientist Yes. But for now we are interested only in mono substitution

Ah so In ortho case, there are still different priorities for different positions

While in para case, every position had equal priority right?

No we are not finding major product.

Sir?

@KavinIshwaran pls explain , can't understand what ur saying .

The question says it gives only one mono substituted product in the sense, whereever yiu substitute the nitro group you will get the same product again and again

I can draw a diagram if it helps

Aah got it now, so that's what it meant. Without focusing on mono substituted I focused on di substitution

thank you thank you thank you :-)

Yes :-)

Always Welcome :-)

Without going into the disubstitution we can get the answer in the first hint itself

seems like I have to frequent this chat more often

I'll come here more ! With more qs

What r ur timings?

I can always help with JEE questions if I can :-) However Maths and Physics are my strong areas.

@PandaScientist I will be here till 10:00 PM

@KavinIshwaran done ✅✅✅

@KavinIshwaran ok noted !

:-)

Hello @KavinIshwaran

Im back again

Physics this time

Hi !

I will try :-)

Just a sec , another kid

Hello bhaiya

Yes

Ive a doubt in concept/ theory

Yes

In a vertical stream line , can we use pgh like we do in finding static pressure

No

aap samjh gye mein kya kehna chahta hu?

the pressure will be complicated

@PandaScientist Ah ? :-)

I understand your question

can we do it in horizontal streamline?

Yes in horizontal you can do

Ah thank God . Because of this misconception i answered many qs wrong

In vertical streamline the pressure at any point would be zero I guess

@KavinIshwaran 0? Why?

Just like if your falling from a building

Can I send u a qs?

Yes

I dont know enough about pressure at any point in the vertical stream line

@KavinIshwaran but we can't do it normally like we do in static right?

Yes

should I send u the eqn I made so that u can check,?

I am searching for my workbook :-)

Ok I found a paper

Few minutes

Ok

@PandaScientist I am getting an answer close to 100 Joules...

its 8

Oh Wait...

I am getting 800.36 Joule...

Hmm... I am missing an order of 100

8 is correct

There must be some unit thing

All I did is F.V and integrated it over time

Can u please check this

Ok what have you done ?

Bernoulli Bernoulli and Continuity eqn

I dont feel we can use bernoulli's theorem to find work done by the agent...

What did u do?

Shall I send my working ?

Yes yes :-)

I will copy it neatly just 2 minutes

@KavinIshwaran you integrated PdV like we do in gases?

Kind of... I integrated power over time

Interesting

@PandaScientist It took longer than I expected :-(

@KavinIshwaran don't worry I'm still here

Oops I forgot to multiply it by A1 in the very last step...

Please check if I have done the units correctly

im getting 0.8

It should be 0.08

idk what is going on

In your method ?

Yes

I dont know :-(

I am just seeing what my method gives...

Got it ,

I got the answer ,,,, :-)

Did u get it?

I have to go through

I am in dinner