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Chemistry Key Concepts > Qualitative Analysis > Flashcards

Qualitative Analysis Flashcards

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1
Q

How do you test for an Alkene?

A

Bromine Water

Brown to Colourless

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2
Q

How do you test for a Haloalkane?

A

Silver Nitrate and ethanol in 50°C Water bath

Precipitate (Yellow Iodo-, Cream Bromo-, White Chloro-)

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3
Q

How do you differentiate between Silverhalides?

A

Ammonia Solution
AgCl- dissolves in dilute
AgBr- dissolves in concentrated
AgI- Insoluble

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4
Q

How do you test for a Carbonyl?

A

2,4-DNP

Orange Precipitate

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5
Q

How do you test for an Aldehyde?

A

Warmed Tollens Reagent

Silver mirror

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6
Q

How do you test for a Carboxylic Acid?

A

Aqueous Sodium Carbonate

Effervesence

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7
Q

How do you test for a Primary and Secondary Alcohol and Aldehyde?

A

Acidified Potassium Dichromate warmed in a water bath

colour change from orange to green

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Chemistry Key Concepts (7 decks)

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