Alcohols Flashcards

1
Q

What is the functional group of an alcohol

A

-OH

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2
Q

What other name can be given to the -OH other than an alcohol group

A

Hydroxyl group

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3
Q

What is the suffix of an alcohol

A

-ol

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4
Q

Are alcohols soluble

A

yes

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5
Q

what makes alcohols soluble

A

they have a polar part in the O-H bond causing hydrogen bonding between water molecules

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6
Q

What makes alcohols have higher melting points than alkanes

A

Both have London forces but hydrogen bonds in alcohol make a huge difference in the amount of energy required to overcome these forces

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7
Q

What is a primary alcohol

A

where the -OH is attached to a carbon which is attached to 1 carbon

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8
Q

What is a secondary alcohol

A

where the -OH is attached to a carbon which is attached to 2 carbons

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9
Q

What is a tertiary alcohol

A

where the -OH is attached to a carbon which is attached to 3 carbons

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10
Q

what products form in the complete combustion of alcohols

A

carbon dioxide and water ( and energy )

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11
Q

The higher the stability of the alcohol, the ____ energy released per mole

A

more

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12
Q

What is the typical oxidising agent used to oxidise alcohols

A

acidified potassium dichromate

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13
Q

What happens when you oxidise a primary alcohol in a distillation on gentle heating with an [O]

A

Aldehyde produced

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14
Q

What happens when you oxidise a primary alcohol in a reflux on strong heating with an [O]

A

carboxylic acid produced

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15
Q

What happens when you oxidise a secondary alcohol in a reflux with an [O]

A

ketone produced

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16
Q

What happens when you try and oxidise a tertiary alcohol with an [O]

A

alcohol stays as an alcohol

17
Q

What is dehydration

A

when water is removed from the starting material

18
Q

What happens when you heat an alcohol under reflux with an acid catalyst

A

an alkene is formed