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Flashcards in 2.9 Alkenes Deck (13)
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Define position isomerism

Isomers with the functional group, the double bond, in different positions along the carbon chain

1

Define geometrical isomerism

A form of stereoisomerism where the two alkenes have the same structural formula but the bonds are arranged differently in space

2

What is the angle between every bond in an alkene?

120 degrees

3

What is a pi orbital?

A cloud of electron density above and below the double bond

4

Are alkenes soluble in water?

No

5

What is the name of the type of reagent that attacks carbon carbon double bonds?

Electrophile

6

What is the most common type of reaction that alkenes undergo, because the double bond is so susceptible to attack by an electrophile?

Electrophillic addition

7

When drawing out a mechanism, what do the arrows represent?

Movement of electrons

8

What do the letters stand for in CHEET?

Concentrated sodium hydroxide (to provide OH- ions), hot, ethanol solvent, elimination, tertiary haloalkane

9

What are three products of an elimination reaction?

Alkene, water and halide ion

10

What are the pneumonics used to distinguish between nucleophillic substitution and elimination?

CHEET and PAWN

11

What do the letters stand for in PAWN?

Primary haloalkane, aqueous solvent, warm, nucleophillic

12

What are the two products of a nucleophillic substitution reaction?

An alcohol and a halide ion