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CHEMISTRY > A2: Carbonyls > Flashcards

A2: Carbonyls Flashcards

1
Q

Product of reducing a Carbonyl with NaBH4/H2O

A

An alcohol

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2
Q

Danger of Hydrogen Cyanide (HCN)

A

Colourless, extremely poisonous, boils only slightly above room temperature

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3
Q

Carbonyl + HCN

A

A hydroxynitrile

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4
Q

Test for Carbonyls

A

2,4 DNP, yellow or orange precipitate forms

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5
Q

Test for aldehydes

A

Tollen’s reagent , Silver mirror forms

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6
Q

Identifying ketones/aldehydes by melting point

A

Filter out precipitate, recrystalise, measure melting point and compare to databook

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7
Q

Identifying alcohols

A

Add acidified potassium dichromate, orange dichromate(VI) ions to green chromium (III) ions

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8
Q
A
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CHEMISTRY (30 decks)

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