Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
logo
  • CCEA
  • Chemistry
  • Unit AS 2 - Further Physical and Inorganic Chemistry and Introduction to Organic Chemistry
To add items to your wishlist, you must be logged in
Document preview thumbnail
Preview 1 out of 1 pages
Summary

Alkenes Summary Sheet

0.0
(0 reviews)
- sold
1 pages
2018/2019 Written for academic year
Institution
CCEA
Course
Unit AS 2 - Further Physical and Inorganic Chemistry and Introduction to Organic Chemistry
Document preview thumbnail
Preview 1 out of 1 pages

Alkenes Summary Sheet

Content preview

Alkenes
CnH2n/ Unsaturated hydrocarbons: Contain C=C and are made of only C and H
C=C contain a pi and sigma bond, is a region of high electron density, open to attack by
electrophiles, much more reactive than alkanes.
A sigma bond is formed by the linear overlap of two S-orbitals, free rotation
A sigma bond can also be formed by the linear overlap of S and P
Pi bond is formed by the sideways overlap between two p orbitals
Reactions
Bromination of Ethene:
Electrophilic Addition
C2H4 + HBr → C2H5Br
Primary Carbocation: Carbocation which has one carbon directly attached to the positively
charged carbon
Two possible options, tertiary carbocation is most stable, most formed.
Hydrogenation:
Finely divided nickel catalyst, 180oc, 4atm
C2H4 + H2 → C2H6
Hydration:
Conc. phosphoric acid, 300oc, 60atm
C2H4 + H20 →C2H50H
Bromination with Bromine Water
-Mix Bromine Water with a liquid alkene or bubble a gaseous alkene through bromine water
-C2H4 + Br2 → C2H4Br2
Test for a C=C bond
If yellow bromine water changes to colourless in the presence of an organic compound =
contains a C=C
Polymerisation: Joining together of small molecules to form a larger molecule
Connected book
image
Dr Wingfield Glassey, Dr Wingfield Glassey Chemistry for CCEA AS Level
Publisher: Unknown ISBN: 9781780731018 Edition: Unknown

Document information

Study Level
A/AS Level
Subject
Chemistry
Summarized whole book?
No
Which chapters are summarized?
Alkenes
Uploaded on
February 26, 2019
Number of pages
1
Written in
2018/2019
Type
Summary
Report Copyright Violation
$11.23
Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF
Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
TiarnanMcKeever
4.2
(17)
Sold
27
Followers
25
Items
23
Last sold
4 months ago
Available in package deal
Product Image
Package deal
AS1 Chemistry CCEA
-
6
Sold
19
item
Feb 2019
$137.52
$7.72
You save 94% More Info

Browse related subjects

Subjects

  • alkenes
  • chemistry

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Learn more Create citation
Working on your references?

Frequently asked questions