Doubt from halides

#30

It is C na ???
Yeh same reason
@Adarsh_Dhir

#31

Yes

#32

Hydrolysis can follow Sn1 and 2 both. So by which mechanism would it proceed here as from both C will be correct ? @arush_kumar_singh

#33

IMO it will be SN2

#34

Why not sn1 as carbocation is also stable?
@arush_kumar_singh

#35


@Yash_Srivastava2

4 Likes
Doubt from alkyl halide
Arrange compound in image in decreasing order of sn2
#36

The answers are
25 - a,d
27- d

#37

Lol 25 ka d diya hai aur C nahi diya hai..
Tertiary Carbo cation k sn 1 hona pakka hai
@Mayank_Chowdhary
Check official answer keys

1 Like
#38

@arush_kumar_singh btw IV bhi Sn2 jada fav hai kya ?

#39

@Mayank_Chowdhary in fiitjee archive 25th -A B C D all 4 are given correct :thinking:

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#40

Maybe the answer keys are misprint
Btw this book was Arihant 39 years
Will check the official
I too was thinking that C toh pakka correct hi Hoga ...:sweat_smile:

#41

For A in my notes

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#42

@arush_kumar_singh
Can you please explain 27 ?
Why B is incorrect for Q.27 ?
One more thing ... If solvent is given then do we go by solvent or this one - the one you posted in #41 ?
@Yash_Srivastava2

#43

Bro i don't know but i m very confused always in stuff of choosing Sn1 or sn2 or e1 e2

#44

In 27 stability of alkene directs the reaction.
Here major factor of C+ stability is resonance ..
So position doesn't matters much ..
So most stable alkene forms in d ..
So d is rt ans

#45

B seems to be incorrect now imo

1 Like
#46

Shouldn't the stability of the intermediate i.e. the Rate Determining step matter ?
Also even in b we get the resonance structure , right
@arush_kumar_singh

#47

Two factors govern reaction

  1. kinetic
  2. thermodynamic ..
    And here thermodynamics product is preferred ...
    Most stable product is 3 (check stability og alkene)
1 Like
#48

Okay one last doubt bro -
How do we know which product to take ?
@arush_kumar_singh

You meant 4th one right ?

#49

q31 @arush_kumar_singh