IGNOU CHE 1 2018 - Predict the hybridization state of each carbon atom in allene which ha

Question

Predict the hybridization state of each carbon atom in allene which has the following structure:

CH₂ = C = CH₂

24 Jan 2018

Answer :

Word Count : 461

Allene H₂C=C=CH₂ first look at how many groups each C is attached to, the answer is colour coded below:

Image ignouacademy-com--p-state-73403

Therefore, there are 2 sp2 and 1 sp hybridised C atoms. Note that this example highlights an example of an sp hybridised C that is not part of an alkyne C≡C

______________________________________________________________

Geometry 3D view of propadiene (allene)

The central carbon atom of allene forms two sigma bonds and two pi bonds. The central carbon is sp-hybridized, and the two terminal carbon atoms are sp2-hybridized. The bond angle formed by the three carbon atoms is 180°, indicating linear geometry for the carbon atoms of allene. It can also be viewed as an "extended tetrahedral" with a similar shape to methane.

Symmetry

Allene symmetry.png

The symmetry and isomerism of allenes has long fascinated organic

___ ___ _________ __________ _________.
_____ ____ _________ _______ _____ ______ ________ _________ _________ _________ ________.
____ __________ ________ ______ _______ ____ ________ _________ _________ ___ __________.
_______ __________ _________ ______ __________ _____ ____ ____ _____ ______ _____.
___ _____ ____ ___ ________ __________ ________ _____ ___ ____ ___.
_______ _________ _______ __________ ________.
____ ____ ____ ________ ___ __________ ______.
____ _____ ________ ___ ________ ____ _____.
_____ ______ ___ _____ ______ ________.
________ ______ _______ _________ __________ _______ _______.
_______ _________ ________ ____ ____ ____ ___ _________.
___ _______ ______ _______ _______ ______ _______ ____ __________ __________.
______ _______ ___ _____ ______ _________ ___ _________ ___.
___ ______ _______ ____ ____ ____ _________ ___ ________ ________ __________.
____ _______ ____ __________ _________ ______ __________ ______ ____ _______ __________ ____.
______ _____ ______ _______ _____ ________.
_________ ______ ________ _______ _____ _____ _______ _________.
________ _________ ________ ________ _____ ______ _____ __________ _________ _______ _______.
______ _________ _____ ________ ____ __________ ____ _________ _________ __________.
___ _____ _____ __________ ______ ______ ___ ______ ________ ________ _______ _________.
__________ _________ ________ __________ ____ _________ _______ ________ ________ _________ ________ ______.
____ __________ ________ ________ ______ ________ _______ ____.
_______ ___ ___ ___ _____ ______.
_________ ____ ____ ____ ________ _________ ________ ____ ______ _____.
__________ _________ ________ _____ ___ _________ __________ ___.
_____ _________ ___ __________ _______ _________.
____ ___ __________ ________ _________ ___ ________ ______ ______ ____.
_________ __________ _____ ______ _________ _____ ____.
________ __________ _________ _______ ____ _______.
___ _________ ___ _______ _______ ____ ______.
___ _______ __________ _________ ___ ____ _______ ___.
______ ____ _________ ________ _________ ________ ___ _____ ________ ___ __________.
__________ ________ _____ _____ ______ ______ _____ __________ ______ _____ _________ ___.
_____ ______ _________ ___ __________.
_____ _______ ______ ________ ____ ________ ________ _____ _____ ________.
____ ___ _____ __________ ________ ____ ________ ________ __________ ___.
_________ _____ ___ __________ __________ ________ _____ _____ ___.

IGNOU ACADEMY

Your IGNOU journey, made easier.

Solved Assignments
Study Notes
Guess Papers
Question Papers

Call Us WhatsApp

STUDY • PREPARE • SUCCEED

Skip in 10