Electrophiles

Chemistry Level 2

Which of the following pairs represents a set of electrophiles?

(a) $\ce{Br+}$ and $\mathbf{\colon}\ce{CCl2}$
(b) $\ce{H+}$ and $\ce{H2O}$
(c) $\ce{BF3}$ and $\ce{NH3}$
(d) $\ce{H-}$ and $\ce{AlCl3}$

(a) (b) (c) (d)

3 solutions

Kishore Thapasvi
Sep 18, 2015

Carbenes are electrophiles, dont look at the lone pair on carbon, still around the carbon total 6 electrons ( ONE lone pair two bond paires) which is less than octet number therefore these are electron deficient , hence required two electrons to complete octet.So, carbene is electrophile

Agree with ur answer

Tonmai Sarmah - 4 years, 6 months ago

No not all carbenes are electrophiles.Only Singlet carbenes are electrophile.Triplet carbenes are not electrophiles. $:CCl2$ is a singlet carbene and hence is an electrophile.

Spandan Senapati - 4 years, 1 month ago

Ronak Agarwal
Nov 7, 2014

$:C{Cl}_{2}$ carbene is an intermediate electrophile in riemer tiemann reactions,

whereas $Br+$ is an electrophile that is usually used in benzene bromination.

This Question will be more better if in one option we put K+ ( Potassium ion ) in option . Since K+ is not an electrophile !!

Karan Shekhawat - 6 years, 7 months ago

please tell me how ? K+ not a electrophile. during riemer tiemann reaction how do carbene interact with magnetic field paramagnetically or diamagnetically. the same i ask from ronak too.

Gaurav Jain - 6 years, 7 months ago

Nikhil Rathore
Jun 4, 2016

electrophiles are electron loving species . Rest can be deduced automatically

Water can be an electrophile and as well no?

Roy Yaniv - 2 years, 2 months ago

Electrophiles

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