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CHM140L MODULE 2 > Alcohols and Phenols > Flashcards

Alcohols and Phenols Flashcards

1
Q

Oxygen containing compounds such as alcohols, phenols and ethers are known as organic derivatives of

A

Water

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2
Q

It contain a hydroxy group (OH) bonded to an sp 3 hybridized carbon

A

Alcohols

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3
Q

They are classified according to the number of alkyl groups attached to carbon bearing the OH.

A

Alcohols

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4
Q

Classification of Alcohols

A

Primary Alcohols (1 - R group)
Secondary Alcohols (2 - R groups)
Tertiary Alcohols (3 - R groups)

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5
Q

In ______, the hydroxyl group is directly bonded to an aromatic system.

A

Phenols

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6
Q

Lucas Test Reagent

A

Lucas Reagent

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7
Q

This is a solution of anhydrous zinc chloride in concentrated hydrochloric acid

A

Lucas Reagent

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8
Q

Test for alcohols with six or fewer
carbons

A

Lucas Test

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9
Q

Positive result of Lucas Test

A

formation of an insoluble layer, cloudiness, color change (red or orange) or an emulsion.

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10
Q
A
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11
Q

In the Lucas Test, the classification of alcohols immediately gives a positive result.

A

Tertiary Alcohol

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12
Q

In the Lucas Test, the classification of alcohols react slower than the tertiary alcohols.

A

Secondary alcohols

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13
Q

This produces no identifiable cloudiness in Lucas test

A

Primary Alcohols

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14
Q

This is a test for phenols and alcohols

A

Acetyl Chloride Tests

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15
Q

It is the mixture in Lucas Reagent

A

HCL-ZnCl2 mixture

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16
Q

Use to differentiate primary, secondary, and tertiary alcohol based on the difference in reactivity of the alcohol toward hydrogen halides

A

Lucas Test

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17
Q

The Alkyl Chloride formed are soluble
True or False

A

False (it is insoluble)

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18
Q

In the Lucas Test, the appearance of cloudiness indicates the formation of an alkyl chloride from the alcohol.
True or False

A

True

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19
Q

Tertiary alcohols (low MW and water-soluble) react rapidly with HCL for a few minutes at room temperature, resulting in the conversion of the alcohol into a ________.

A

chloroalkane

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20
Q

Low MW, water-soluble Primary and Tertiary alcohols are unreactive under these conditions.
True or false

A

True

21
Q

Result of 1-butanol in Lucas Test

A

Negative

22
Q

Result of 2-butanol in Lucas Test

A

Positive (reaction after several minutes)

23
Q

Result of tert-butanol in Lucas Test

A

Positive (fast reaction)

24
Q

Lucas Test applies only to those alcohols soluble in the reagent
True or False

A

True

25
Q

Positive Result: Evolution of heat and gas or a precipitate (production of hydrogen chloride gas)

A

Acetyl Chloride Test

26
Q

It has a limitation of when moisture is present in the unknown the result will give a positive test.

A

Acetyl Chloride Test

27
Q

Acetyl Chloride Test reagent

A

acetyl chloride

28
Q

It produces the corresponding carboxylic acid together with steamy acidic fumes of hydrogen chloride.

A

Acetyl Chloride test

29
Q

The reaction of this test is usually extremely vigorous at room temperature.

A

Acetyl Chloride test

30
Q

Alcohols react with acetyl chloride to form _____ and gives out _______.

A

esters and hydrogen chloride gas

31
Q

The hydrogen chloride formed gives ________ of ammonium chloride with ammonium hydroxide.

A

white fumes

32
Q

The reaction between phenol and ethanoyl chloride isn’t quite as vigorous as that between alcohols and ethanoyl chloride. The reactivity of the -OH group is modified by the benzene ring.
True or False

A

True

33
Q

A Ferric Chloride Test is used to identify phenols
True or False

A

True

34
Q

Reagent of Ferric Test

A

Ferric Chloride or FeCl3

35
Q

Positive Result: Formation of colored complex (usually blue, green, reddish-brown, red or purple)

A

Ferric chloride Test

36
Q

Ferric chloride test is also known as

A

Iron (III) Chloride Test

37
Q

1-butanol reaction in Ferric test

A

Negative (because it is an alcohol)

38
Q

Phenol reaction in Ferric Chloride Test

A

Positive

39
Q

Bromine in Water Test reagent

A

Br2/H2O

40
Q

Positive Result: disappearance of the orange color

A

Bromine in Water Test

41
Q

Bromine in water test is used to identify phenols in a compound
True or False

A

True

42
Q

Tandem test in classifying alcohol (except for Lucas Test)

A

Ritter Test / KMnO4

43
Q

Positive test: disappearance of violet color in cold concentrated sulfuric acid and Brown Precipitate

A

Ritter test

44
Q

In Tandem Test what classification of alcohols has a positive results

A

Primary and Secondary Alcohol

45
Q

It is soluble in aqueous NaOH but not in aqueous NaHCO3

A

PHENOLS

46
Q

It forms colored complex with FeCl3 (green, blue, violet, red)

A

Phenols

47
Q

In oxidation of phenols KMnO4 and H2CrO4 will results in

A

KMnO4 - black ppt (precipitate)
H2CrO4 - opaque green

48
Q

Phenols in Bromine in water test will result in ________.

A

white ppt. of 2,4,6 - tribromophenol

CHM140L MODULE 2 (2 decks)

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