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Chemistry > Alcohols > Flashcards

Alcohols Flashcards

1
Q

What are some uses of alcohols?

A

Fuels, drinks, solvents

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2
Q

What is the alcohol functional group?

A

-OH

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3
Q

What is bioethanol used for?

A

grow maize, extract glucose, ferment into ethanol, (CO2 neutral)

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4
Q

Why is antifreeze more soluble in water?

A

Because it has double the amount of hydrogen bonds

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5
Q

What is needed for dehydration of alcohols?

A

H3PO4, H2SO4

Reflux

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6
Q

What happens in the oxidation of alcohols?

A

Distillation: aldehyde/ketone + water
Reflux: Carboxylic acid + water

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7
Q

What is the oxidising reagent for alcohols and the observations expected?

A

Reagent: acidified dichromate solution H+/Cr2O72- (aq)
Observation: orange –> green

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8
Q

What are the stages for making alcohols into haloalkanes?

A

Stage 1: making HX
e.g. NaX + H2SO4 –> HX + NaHSO4

Stage 2: nucleophilic substitution mechanism
e.g. alcohol + HX –> Haloalkane + H2O

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Chemistry (62 decks)

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