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Qualitative Analysis > Module 4 and 6 (paper 2 & 3) > Flashcards

Module 4 and 6 (paper 2 & 3) Flashcards

1
Q

Functional group: Alkene

A

Chemical Test: Br2
Orange to colourless

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2
Q

Functional group: Haloalkane

A

Chemical Test: AgNO3 in ethanol, 50°C
AgCl white precipitate, soluble in dilute NH3
AgBr cream precipitate, soluble in conc. NH3
AbI yellow precipitate, insoluble in NH3

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3
Q

Functional Group: Phenol

A

Chemical Test: Na2CO3
No fizzing, weak acidity

Chemical Test: Br2
Orange to colourless with white precipitate

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4
Q

Functionl Group: Carbonyl (aldehyde or ketone)

A

Chemcial Test: 2.4-DNPH
Orange precipitate

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5
Q

Functional Group: Aldehydes

A

Chemical Test: Tollens reagent
Silver mirror

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6
Q

Functional Group: 1° or 2° alcohol or aldehyde

A

Chemical Test: K2Cr2O7 and H2SO4, heat
Orange to green

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7
Q

Functional Group: Carboxylic acid

A

Chemical Test: Na2CO3
Fizzing

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Qualitative Analysis (3 decks)

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