which of the following compound has planar structure
alkane or alkene or alkyne or cycloalkane
Answers
HELLO THERE!
A structure will be planar, if it has sp² hybridized (carbon with 3 sigma bonds).
When you consider alkane (suppose methane), it has only single bonds. So, the carbon of methane molecule has 4 sigma bonds, and is sp³ hybridized. So, alkane is not planar. Its structure is Tetrahedral.
When you consider a simple alkene (suppose, ethene), it has one double bond, connecting two carbons. One double bond has one sigma and one pi bond. Again, two single bonds contain two sigma bonds. So, one carbon is having a total of three sigma bonds, hence hybridization is sp². So, alkenes are planar.
When you consider alkyne (suppose ethyne), then it contains one triple bond. One triple bond contains one sigma and two pi bonds. So, one carbon in alkyne contains two sigma bonds, which is hence sp hybridized. So, alkyne is not planar. It has a Linear structure.
In case of Cycloalkanes, only Cyclopropane have a planar structure. Others are not planar.
Refer to the picture, for structure of ethene.
THANKS!
Answer:
alkenes
Explanation: