Organic - Alkenes Flashcards
1
Q
What are features of alkenes?
A
They have double carbon bonds
2
Q
What is a sigma bond?
A
A single covalent bond
3
Q
What is a pi bond?
A
A double covalent bond?
4
Q
In ethene, why is the c=c electron rich?
A
It has a double bond, the pi bonds are above and below the nuclei of the C atoms
5
Q
Why is the bond angle on the c=c bond in ethene 120°?
A
In the double bond the elections on the 3 sigma bonds are at maximum repulsion of 120° forming a trigonal planar shape
6
Q
Why is the c=c in ethene planar?
A
The shape of the 3 sigma bonds in a trigonal planar and there is no rotation due to the double bond
7
Q
What is an electrophile?
A
An electrophile is a lone pair acceptor
