Carbonyl Flashcards by lily Parish | Brainscape

Q

What is a ketone reduced to

A

Secondary alcohol

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Q

What is 2,4 dinitrophenylhydrazine a test for

A

Aldehydes and ketones

Orange precipitate forms

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Q

How can 2,4 test distinguish between ketones and aldehydes

A

Purify by recrystallisation

Melting point compared to known values

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Q

Reactions of aldehydes only

A

Oxidising - acidified potassium dichromate

Tollens - silver mirror

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Q

How is tollens reagent made

A

Dilute sodium hydroxide to silver nitrate

Dilute ammonia until Ag2O redissolves

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Q

Acid + base

A

Salt and water

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Q

Acid + Carbonate

A

Salt + water + carbon dioxide

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Q

What is anhydride functional group

A

OCOCO

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Q

Naming of addition with cyanide ion

A

2-hydroxynitrile

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