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chemistry > chapter 10 acohols and phenol > Flashcards

chapter 10 acohols and phenol Flashcards

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1
Q

solubility in H20 of butan-1-ol

A

+

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2
Q

what is the color of the ferric chloride test of phenol

A

violet

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3
Q

what is the color of ferric chloride test of butan-1-ol

A

yellow

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4
Q

explain why many alcohols are soluble in water. What part of an alcohol limit its solubility in water and what part of alcohol make it soluble in water?

A

it is soluble in water due to their ability to form hydrogen bonds with water molecules.the hydrocarbon can limit its solubilty in water. shorter hydrocarbon chains tend to increase solubility while long chains decrease solubility.

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5
Q

what do u predict that methanol, ethanol and propanol are soluble in water?

A

all are soluble in water since they can form hydrogen bonds with water molecules. This bonds enable the alcohols to mix and dissolve in water.

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6
Q

what is the ferric chloride test of tert-butanol?

A

yellow

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7
Q

what is the ferric chloride test of unknown 2?

A

yellow

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8
Q

ph of phenol

A

6

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9
Q

what is the structure of methanol

A

CH3-OH

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10
Q

what is the structure of ethanol

A

CH3CH2-OH

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11
Q

what is the structure of propanol

A

CH3CH(OH)CH3

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12
Q

what do you call a benzene with OH

A

phenol

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13
Q

alcohols are organic compounds that contains
____ group.

A

hydroxyl (OH)

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14
Q

classifications of aliphatic alcohol

A

1- primary alcohol
2- secondary alcohol
3- tertiary alcohol

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15
Q

OH group is attached to one carbon atom

A

primary

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16
Q

alcohol attached to 2 carbon atoms

A

secondary alcohol

17
Q

alcohol that attached to 3 carbon atoms

A

tertiary

18
Q

what is tertiary alcohol?

A

it react immediately. the test tube will get hot and because the chloride is insoluble two layers may be apparent or a cloudy dispersion form.

19
Q

what does secondary alcohol reacts

A

it will become cloudy in 5-10 min. If cloudiness does not appear place the test tube in hot water bath.

20
Q

what does tertiary alcohol reacts

A

no reaction in a reasonable length of time.

21
Q

aldehyde and ketones containing 1 to 4 carbon atoms are ___________ in water

A

soluble in water

22
Q

aldehyde and ketones containing 5 or more carbon atoms are _______ in water.

A

insoluble

23
Q

what chemical test can you use to distinguish between pentan-2-one and pentan-3-one?

A

iodoform test will be and effective way since pentan-2-one will result to positive while pentan-3-one will result to negative.

24
Q

compound A forms red orange precipitate with benidict reagent but does not react with iodoform?

A

it is aldehyde

25
Q

compound b forms yellow solid in iodoform test but does not react with benedict reagent

A

it is acetone.

26
Q

does formaldehyde is soluble in water?

A

yes

27
Q

functionality of acetone ( ketone or aldehyde)

A

ketone

28
Q

Functionality of benzaldehyde (ketone or aldehyde)

A

aldehyde

29
Q

Functionality of butan-2-one (ketone or aldehyde)

A

ketone

30
Q

Functionality of formaldehyde (ketone or aldehyde)

A

aldehyde

31
Q

Functionality of vanillin (ketone or aldehyde)

A

aldehyde

32
Q

what sample is insoluble in water?

A

benzaldehyde

33
Q

what are the iodoform test presence of methyl ketone?

A

acetone and butan-2-one

34
Q

what are the iodoform test absence of methyl ketone?

A

benzaldehyde, formaldehyde, vanillin

35
Q

lewis structure of acetaldehyde

A
36
Q

lewis structure of acetone

A
37
Q

lewis structure of butan-2-one

A
38
Q

lewis structure of formaldehyde

A
39
Q

lewis structure propionaldehyde

A

chemistry (8 decks)

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