Unit 2 Alkenes
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What is the general formula of an alkene
C H n 2n
What is the name of the reaction that alkenes undergo to become a haloalkane
Electrophilic addition reactions
What is the general equation for a electrophilic addition reaction
CH2CH2 + X-Y —-> CH2XCH2Y
What are the conditions for electrophilic addition
Room temp and excess of electrophile
How do you test for the presence of an alkene
Add bromine water to the solution you are testing, if alkene is present the colour will change from orange to colourless
What is the most stable form of carbocation
Tertiary carbocation is the more stable than a primary and secondary carbocation. This is due to the positive inductive effect of the alkyl groups pushing electrons on to the C+ so it is more likely to be attacked by an electrophile.