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Flashcards in Alkenes Deck (9)
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1

Structure and bonding in Alkenes

Planar, 120

2

Why does E-Z isomerism exist?

Rigidity about the pi bond between the carbon-carbon

3

Stereoisomers

Molecules with the same molecular formula and the same arrangement of covalent bonds but with different spatial orientations of the groups.

4

E-Z stereoisomers

Stereoisomers with different spatial orientations around the carbon-carbon double bond.

5

Heterolytic fission

The breaking of a covalent bond which results in both electrons going to the same atom.

6

An electrophile is

a species which can accept a pair of electrons from a species with a high electron density

7

Alkene to Alcohol

Step 1: cold concentrated H2SO4
Step 2: warm and add H2O

8

Markownikoff's rule

The more electronegative part of the electrophile will usually attach itself to the more highly substituted carbon atom

9

Production of pure ethanol

When alkenes are treated with steam at 300C, a pressure of 60 atmospheres and a phosphoric acid (H3PO4) catalyst, the H2O is added across the double bond and an alcohol is formed in a reaction known as hydration