In which of the following molecules,all atoms | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) For a molecule to be coplanar,all its atoms must lie in the same plane.$(A)$ Biphenyl: Due to steric hindrance between the ortho-hydrogens of the

Vedclass · Accepted Answer

$1,1-$dicyano$-2,2-$dimethylethene

Vedclass · Answer

(C) For a molecule to be coplanar,all its atoms must lie in the same plane.$(A)$ Biphenyl: Due to steric hindrance between the ortho-hydrogens of the two phenyl rings,the rings are twisted relative to each other,making the molecule non-coplanar.$(B)$ Cyclohexane: It exists in a chair conformation,which is non-planar.$(C)$ $1,1-$dicyano$-2,2-$dimethylethene: The central $C=C$ bond is $sp^2$ hybridized. The two $CH_3$ groups and two $CN$ groups are attached to these $sp^2$ carbons. While the $C=C$ bond and the atoms directly attached to it are planar,the $CH_3$ groups have $sp^3$ hybridized carbons,which are tetrahedral and not coplanar with the rest of the molecule.$(D)$ Bicyclohexyl: It consists of two cyclohexane rings,which are non-planar.Correction: Upon re-evaluating the options,none of the provided structures are strictly coplanar in their most stable conformations. However,if we consider the planar representation of the $C=C$ system in option $(C)$,it is the closest to being planar,but strictly speaking,the methyl hydrogens prevent total coplanarity. If the question implies a planar structure like $1,1-dicyanoethene$,it would be planar. Given the standard options,this question is often flawed in competitive exams. If we must choose,$1,1-dicyano-2,2-dimethylethene$ has a planar $C=C$ core,but the methyl groups are not. If the question intended $1,1-dicyanoethene$,it would be planar.

In which of the following molecules,all atoms are coplanar?

Similar Questions

Which of the following statements is correct?

Observe the following structure. The formal charges on the atoms $1, 2, 3$ respectively are:

The angular shape of the ozone molecule consists of

What is true about $S_8$ molecule?
$I.$ There are no $p_{\pi}-p_{\pi}$ bonds present in the molecule.
$II.$ There are eight lone pairs of electrons.
$III.$ Each $S$ atom is $sp^3$ hybridized.

Which of the following statements regarding $BCl_3$ is incorrect?

Vedclass Test Series

Exam Paper Generator

Online Exam Module