Qualitative Tests for Carbohydrates Flashcards

1
Q

For carbohydrates in general

A

Molisch
Anthrone

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2
Q

For starch

A

Iodine

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3
Q

For reducing sugars

A

Benedict’s
Barfoed’s
Tollen’s

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4
Q

For pentoses

A

Bial’s
Phloroglucinol

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5
Q

For ketoses

A

Seliwanoff’s

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6
Q

For several monosaccharides

A

Phenylhydrazine

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7
Q

For galactose

A

Mucic acid

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8
Q

Reagent of Iodine

A

Iodine

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9
Q

Reagent of Molisch

A

alpha-naphthol

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10
Q

Reagent of Anthrone

A

Anthrone

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11
Q

Reagent of Benedict’s

A

Cupric ions in basic medium

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12
Q

Reagent of Barfoed’s

A

Cupric ions in acidic medium

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13
Q

Reagent of Tollen’s

A

Silver nitrate

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14
Q

Reagent of Bial’s

A

Orcinol

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15
Q

Reagent of Phloroglucinol

A

Phloroglucinol

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16
Q

Reagent of Seliwanoff’s

A

Resorcinol

17
Q

Reagent of Phenylhydrazine

A

Dinitrophenylhydrazine

18
Q

Reagent of Mucic Acid

A

Nitric acid

19
Q

Result of Iodine

A

Violet

20
Q

Result of Molisch

A

Violet ring

21
Q

Result of Anthrone

A

Dark green

22
Q

Result of Benedict’s

A

Brick red

23
Q

Result of Barfoed’s

A

Brick red

24
Q

Result of Tollen’s

A

Silver mirror

25
Q

Result of Bial’s

A

Blue green

26
Q

Result of Phloroglucinol

A

Red

27
Q

Result of Seliwanoff’s

A

Cherry red

28
Q

Result of Phenylhydrazine

A

Osazone crystals

29
Q

Result of Mucic Acid

A

Insoluble crystals