Doubt from GOC

#1

Q3.
Pls explain

#2

Hybridisation of Nitrogen in transition state is Sp2.
Due to tunneling of lone pair.

#3

What is tunneling of lone pair?? Pls explain

#4

In inversion of Nitrogen the lone pair of Nitrogen flip from one face to other face .
So in transition state we got only three bond attached to Nitrogen that’s why we called it Sp2 hybridisation.

#5

Thank you..

#6

Qno.2 above. And

qno.10

#7

I think c would be the answer.
And answer of question 2 will be ether.

#8

Why c for qno..10?

#9

Because it is a four member ring and has c=o with Sp2 hybridisation
And we know in Sp2 hybridisation angle has 120 but
here it has only 90 degrees.
That’s why c
Am I correct or wrong.

#10

Yess the ans is c. Got it

#11

What about question 2

#12

It's ether..

#13

Qno.. 15

#14

Q 15 - A option?

#15

Option A because when you attack H on Nitrogen atom it will gain positive charge on them.
And that positive charge are in resonance with benzene ring.
I hope you got it.

#16

Reaction with most basic nitrogen is present in option B. Can't we considered this as an acid base reaction?

#17

The reaction is acid-base here but the point is
How we will stabilise cation. So we have to attack on that Nitrogen where we can get stabilise cation.
Although option B is possible with very little percentage.

#18

Ok got it

#19

Answer given is option B

#20

I am so Sorry Please ignore the post 15 @Ankith_2020 @Aniket_2020_2 because I am totally wrong here