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A Perfect guide to Practicles > Test for functional groups > Flashcards

Test for functional groups Flashcards

1
Q

Alkene

A

Bromine water Orange colour decolourises

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2
Q

carbonyl

A

2,4-DNP Orange precipitate formed

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3
Q

Aldehyde

A

Tollens’ Reagent Silver mirrorformed

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4
Q

Carboxylicacid

A

Carbonateions CO32e.g. Sodiumcarbonate

Effervescence of CO2 evolved

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5
Q

1o 2o alcohol

A

Sodiumdichromate and sulphuric acid

Orangeto green colour change

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6
Q

haloalkane

A

Warm with aqueous silver nitrate in ethanol

Slow formationof white or yellow or cream precipitate

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7
Q

phenols

A

Bromine water Orange colour decolourises making a white ppt
or
Will reactwith sodium and sodium hydroxidewon’t react with Carbonateions CO32
Fizzing with sodium but no reaction with sodium carbonate

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8
Q

aldehyde

A

Sodiumdichromate and sulphuric acid

Orangeto green colour change

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A Perfect guide to Practicles (11 decks)

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