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ALDEHYDES & KETONES
92問 • 9ヶ月前
  • HERSHEY VALERIE BERNARDINO
    • 通報

    問題一覧

  • 1

    Aldehydes and ketones are organic compounds both containing a _____ functional group

    carbonyl

  • 2

    Has two or more bonds that may be occupied by hydrogen or alkyl or aryl substituents

    Aldehydes, Ketones

  • 3

    One R is hydrogen

    Aldehyde

  • 4

    Both R are neither H

    Ketone

  • 5

    R1 and/or R2 = H

    Aldehyde

  • 6

    R1 and R2 = alkyl or aryl group

    Ketone

  • 7

    cinnamaldehyde

    cinnamon bark

  • 8

    vanillin

    vanilla bean

  • 9

    citral

    lemongras

  • 10

    helminthosporal

    a fungal toxin

  • 11

    carvone

    spearmint & caraway

  • 12

    camphor

    camphor tree

  • 13

    muscone

    musk deer

  • 14

    testosterone

    male sex hormone

  • 15

    progesterone

    female sex hormone

  • 16

    cortisone

    adrenal hormone

  • 17

    Naturally occuring organic compounds, often combined with other functional groups

    Aldehyde, Ketone

  • 18

    Largely responsible some of the shared physicochemical properties of aldehydes and ketones

    Carbonyl goup

  • 19

    A highly polarized group because of the greater electronegativity of the oxygen

    Carbonyl group

  • 20

    As a result of the polarization, the carbonyl group is susceptible to _____ attack

    nucleophilic

  • 21

    Aldehydes and ketones are commonly synthesized in the laboratory through _____ reaction of alcohols

    oxidation

  • 22

    Color of acetone in Brady's test

    clear orange solution

  • 23

    Color of acetophenone in Brady's test

    yellow-orange precipitate

  • 24

    Color of benzaldehyde in Brady's test

    orange precipitate

  • 25

    Color of formaldehyde in Brady's test

    reddish orange precipitate

  • 26

    Reagent used in 2,4-DNPH test

    Brady's reagnt

  • 27

    Brady's reagent is named after ____ Brady

    Oscar

  • 28

    Short term for dinitrophenylhydrazine in methanol

    2,4-DNPH

  • 29

    Positive result of aldehydes in Brady's test

    yellow to orange precipitate

  • 30

    Positive result of ketone in Brady's test

    red to orange precipitate

  • 31

    Principle of Brady's test

    Condensation reaction; aldehyde reacts with 2,4-DNPH to form an aldehyde 2,4- dinitrophenylhydrazone while ketone reacts with to form a ketone 2,4-dinitrophenylhydrazone

  • 32

    Color of acetone in sodium bisulfite test

    white recipitate

  • 33

    Color of acetaldehyde in sodium bisulfite test

    whie precipitate

  • 34

    Test to determine if a compound is an aldehyde or an aliphatic methyl ketone

    Sodium sulfite test

  • 35

    Principle of sodium bisulfite test

    The aldehyde or the methyl ketone reacts with sodium bisulfite by breaking the pi bond of the carbonyl group through nucleophilic attack; the bisulfite ion then attaches to the original carbonyl group to form the bisulfite addition compound

  • 36

    With ketones, only _____ ketones will yield positive result

    metyl

  • 37

    Ketones with bulky groups that sterically hinders the bisulfite ion in attaching to the carbonyl group

    methyl ketone

  • 38

    Color of acetone in Schiff's test

    clear colorless solution

  • 39

    Color of acetophenone in Schiff's test

    clear colorless solution

  • 40

    Color of benzaldehyde in Schiff's test

    magenta red solution

  • 41

    Color of formaldehyde in Schiff's test

    magenta red solution

  • 42

    Reagent made of sodium bisulfite with the organic dye pararosaniline hydrochloride

    Schiff's reagent

  • 43

    Positive result in Schiff's test

    magenta red solution

  • 44

    Principle of Schiff's test

    Oxidation of aldehyde to carboxylic acid; reaction involved is the same as explained in the sodium bisulfite test

  • 45

    In this test, some ketones may produce a color change but not a magenta red color

    Schiff's test

  • 46

    Color of acetone is Tollen's test

    clear colorless solution

  • 47

    Color of 5% glucose in Tollen's test

    silver mirror precipitate

  • 48

    Color of benzaldehyde in Tollen's test

    silver mirror precipitate

  • 49

    Color of formaldehyde in Tollen's test

    silver mirror precipitate

  • 50

    Reagent made of silver nitrate with sodium hydroxide and excess ammonium hydroxide to rende solution colorless

    Tollen's reagent

  • 51

    Tollen's reagent is named after _____ Tollens

    Bernhard

  • 52

    Positive result inTollen's test

    silver mirror precipitate

  • 53

    Principle of Tollen's test

    Oxidation of aldehyde to carboxylic acid; the ammoniacal silver nitrate is reduced to silver while producing the carboxylic acid-ammonium salt product

  • 54

    Test which an detect both aliphatic and aromatic aldehydes

    Tollen's test

  • 55

    Color of acetone in Fehling's test

    clear blue solution

  • 56

    Color of 5% glucose in Fehling's test

    brick red precipitate

  • 57

    Color of benzaldehyde in Fehling's test

    clear blue solution

  • 58

    Color of formaldehyde in Fehling's test

    brick red precipitate

  • 59

    Fehling's solution prepared by mixing concentrated sulfuric acid with aqueous solution of copper sulfate pentahydrate

    Fehling's A

  • 60

    Fehling's solution prepared by mixing sodium hydroxide with potassium tartrate

    Fehling's B

  • 61

    Fehling's reagent is named after _____ von Fehling

    Hermann

  • 62

    Positive result in Fehling's test

    brick red precipitate

  • 63

    Principle of Fehling's test

    Oxidation of aldehyde to carboxylic acid; aldehyde reduces the cupric ions in complex with tartrate ions to cuprous ions; forming cuprous oxide

  • 64

    Fehling's test is very specific to produce the _____ result with an aliphatic aldehyde

    positive

  • 65

    In Fehling's test, aromatic aldehydes and ketones give a _____ result

    negative

  • 66

    Color of acetone in sodium nitroprusside test

    wine red solution

  • 67

    Color of ethyl methyl ketone in sodium nitroprusside test

    wine red solution

  • 68

    Positive result in sodium nitroprusside test

    wine red solution

  • 69

    Principle of sodium nitroprusside test

    In the presence of alkali, a methyl ketone such as acetone is converted to CH3C=OCH2 -ion which reacts with nitroprusside ion [Fe(CN)5NO]2- to give highly colored ion [Fe(CN)5NOCH3C=OCH3]2

  • 70

    Test used in clinical tests to detect the presence of acetone in urine

    sodium nitroprusside test

  • 71

    Color of acetone in Iodoform test

    canary yellow precipitate

  • 72

    Color of ethyl methyl ketone in Iodoform test

    canary yellow precipitate

  • 73

    Color of of ethyl acetate in Iodoform test

    clear colorless solution

  • 74

    Reagent in sodium hydroxide made of iodine in potassium iodide in sodium

    Wagner's reagent

  • 75

    Positive result in Iodoform test

    canary yellow precipitate

  • 76

    Principle in Iodoform test

    Solution of I2 in KI in sodium hydroxide reacts only for compounds with the structure RCH(OH)CH3 or RC=OCH3 to form iodoform

  • 77

    Very specific test that does not work for all ketones and does not also work for water-insoluble compounds

    Iodoform test

  • 78

    Color of 5% glucose in Molisch's test

    purple ring at junction of two layers

  • 79

    Color of 5% starch in Molisch's test

    purple ring at junction of two layers

  • 80

    Color of benzaldehyde in Molisch's test

    dark red solution

  • 81

    General test for saccharides

    Molisch's test

  • 82

    Reagent made of 10% a-naphthol in 95% ethanol

    Molisch's reagent

  • 83

    Molisch's reagent is named after _____ Molisch

    Hans

  • 84

    Positive result in Molisch's test

    purple ring at junction of two layers

  • 85

    Principle of Molisch''s test

    The reagent dehydrates pentoses to furfural derivatives and hexoses to 5-hydroxymethyl furfural derivatives; furfural compounds further react with α-naphthol producing a purple-colored product

  • 86

    In Molisch's test, monosaccharides yield _____ results while disaccharides react _____

    rapid, slower

  • 87

    Color of 5% ribose in Bial's test

    dark blue solution

  • 88

    Color of 5% glucose in Bial's test

    clear golden brown solution

  • 89

    Reagent made of orcinol, hydrochloric acid, and ferric chloride

    Bial's reagent

  • 90

    Bial's reagent is named after _____ Bial

    Manfred

  • 91

    Positive result in Bial's test

    blue solution

  • 92

    Principle of Bial's test

    The reagent dehydrates pentoses to form furfural; the furfural further reacts with orcinol and the ferric ion present in Bial’s reagent producing a bluish product

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    問題一覧

  • 1

    Aldehydes and ketones are organic compounds both containing a _____ functional group

    carbonyl

  • 2

    Has two or more bonds that may be occupied by hydrogen or alkyl or aryl substituents

    Aldehydes, Ketones

  • 3

    One R is hydrogen

    Aldehyde

  • 4

    Both R are neither H

    Ketone

  • 5

    R1 and/or R2 = H

    Aldehyde

  • 6

    R1 and R2 = alkyl or aryl group

    Ketone

  • 7

    cinnamaldehyde

    cinnamon bark

  • 8

    vanillin

    vanilla bean

  • 9

    citral

    lemongras

  • 10

    helminthosporal

    a fungal toxin

  • 11

    carvone

    spearmint & caraway

  • 12

    camphor

    camphor tree

  • 13

    muscone

    musk deer

  • 14

    testosterone

    male sex hormone

  • 15

    progesterone

    female sex hormone

  • 16

    cortisone

    adrenal hormone

  • 17

    Naturally occuring organic compounds, often combined with other functional groups

    Aldehyde, Ketone

  • 18

    Largely responsible some of the shared physicochemical properties of aldehydes and ketones

    Carbonyl goup

  • 19

    A highly polarized group because of the greater electronegativity of the oxygen

    Carbonyl group

  • 20

    As a result of the polarization, the carbonyl group is susceptible to _____ attack

    nucleophilic

  • 21

    Aldehydes and ketones are commonly synthesized in the laboratory through _____ reaction of alcohols

    oxidation

  • 22

    Color of acetone in Brady's test

    clear orange solution

  • 23

    Color of acetophenone in Brady's test

    yellow-orange precipitate

  • 24

    Color of benzaldehyde in Brady's test

    orange precipitate

  • 25

    Color of formaldehyde in Brady's test

    reddish orange precipitate

  • 26

    Reagent used in 2,4-DNPH test

    Brady's reagnt

  • 27

    Brady's reagent is named after ____ Brady

    Oscar

  • 28

    Short term for dinitrophenylhydrazine in methanol

    2,4-DNPH

  • 29

    Positive result of aldehydes in Brady's test

    yellow to orange precipitate

  • 30

    Positive result of ketone in Brady's test

    red to orange precipitate

  • 31

    Principle of Brady's test

    Condensation reaction; aldehyde reacts with 2,4-DNPH to form an aldehyde 2,4- dinitrophenylhydrazone while ketone reacts with to form a ketone 2,4-dinitrophenylhydrazone

  • 32

    Color of acetone in sodium bisulfite test

    white recipitate

  • 33

    Color of acetaldehyde in sodium bisulfite test

    whie precipitate

  • 34

    Test to determine if a compound is an aldehyde or an aliphatic methyl ketone

    Sodium sulfite test

  • 35

    Principle of sodium bisulfite test

    The aldehyde or the methyl ketone reacts with sodium bisulfite by breaking the pi bond of the carbonyl group through nucleophilic attack; the bisulfite ion then attaches to the original carbonyl group to form the bisulfite addition compound

  • 36

    With ketones, only _____ ketones will yield positive result

    metyl

  • 37

    Ketones with bulky groups that sterically hinders the bisulfite ion in attaching to the carbonyl group

    methyl ketone

  • 38

    Color of acetone in Schiff's test

    clear colorless solution

  • 39

    Color of acetophenone in Schiff's test

    clear colorless solution

  • 40

    Color of benzaldehyde in Schiff's test

    magenta red solution

  • 41

    Color of formaldehyde in Schiff's test

    magenta red solution

  • 42

    Reagent made of sodium bisulfite with the organic dye pararosaniline hydrochloride

    Schiff's reagent

  • 43

    Positive result in Schiff's test

    magenta red solution

  • 44

    Principle of Schiff's test

    Oxidation of aldehyde to carboxylic acid; reaction involved is the same as explained in the sodium bisulfite test

  • 45

    In this test, some ketones may produce a color change but not a magenta red color

    Schiff's test

  • 46

    Color of acetone is Tollen's test

    clear colorless solution

  • 47

    Color of 5% glucose in Tollen's test

    silver mirror precipitate

  • 48

    Color of benzaldehyde in Tollen's test

    silver mirror precipitate

  • 49

    Color of formaldehyde in Tollen's test

    silver mirror precipitate

  • 50

    Reagent made of silver nitrate with sodium hydroxide and excess ammonium hydroxide to rende solution colorless

    Tollen's reagent

  • 51

    Tollen's reagent is named after _____ Tollens

    Bernhard

  • 52

    Positive result inTollen's test

    silver mirror precipitate

  • 53

    Principle of Tollen's test

    Oxidation of aldehyde to carboxylic acid; the ammoniacal silver nitrate is reduced to silver while producing the carboxylic acid-ammonium salt product

  • 54

    Test which an detect both aliphatic and aromatic aldehydes

    Tollen's test

  • 55

    Color of acetone in Fehling's test

    clear blue solution

  • 56

    Color of 5% glucose in Fehling's test

    brick red precipitate

  • 57

    Color of benzaldehyde in Fehling's test

    clear blue solution

  • 58

    Color of formaldehyde in Fehling's test

    brick red precipitate

  • 59

    Fehling's solution prepared by mixing concentrated sulfuric acid with aqueous solution of copper sulfate pentahydrate

    Fehling's A

  • 60

    Fehling's solution prepared by mixing sodium hydroxide with potassium tartrate

    Fehling's B

  • 61

    Fehling's reagent is named after _____ von Fehling

    Hermann

  • 62

    Positive result in Fehling's test

    brick red precipitate

  • 63

    Principle of Fehling's test

    Oxidation of aldehyde to carboxylic acid; aldehyde reduces the cupric ions in complex with tartrate ions to cuprous ions; forming cuprous oxide

  • 64

    Fehling's test is very specific to produce the _____ result with an aliphatic aldehyde

    positive

  • 65

    In Fehling's test, aromatic aldehydes and ketones give a _____ result

    negative

  • 66

    Color of acetone in sodium nitroprusside test

    wine red solution

  • 67

    Color of ethyl methyl ketone in sodium nitroprusside test

    wine red solution

  • 68

    Positive result in sodium nitroprusside test

    wine red solution

  • 69

    Principle of sodium nitroprusside test

    In the presence of alkali, a methyl ketone such as acetone is converted to CH3C=OCH2 -ion which reacts with nitroprusside ion [Fe(CN)5NO]2- to give highly colored ion [Fe(CN)5NOCH3C=OCH3]2

  • 70

    Test used in clinical tests to detect the presence of acetone in urine

    sodium nitroprusside test

  • 71

    Color of acetone in Iodoform test

    canary yellow precipitate

  • 72

    Color of ethyl methyl ketone in Iodoform test

    canary yellow precipitate

  • 73

    Color of of ethyl acetate in Iodoform test

    clear colorless solution

  • 74

    Reagent in sodium hydroxide made of iodine in potassium iodide in sodium

    Wagner's reagent

  • 75

    Positive result in Iodoform test

    canary yellow precipitate

  • 76

    Principle in Iodoform test

    Solution of I2 in KI in sodium hydroxide reacts only for compounds with the structure RCH(OH)CH3 or RC=OCH3 to form iodoform

  • 77

    Very specific test that does not work for all ketones and does not also work for water-insoluble compounds

    Iodoform test

  • 78

    Color of 5% glucose in Molisch's test

    purple ring at junction of two layers

  • 79

    Color of 5% starch in Molisch's test

    purple ring at junction of two layers

  • 80

    Color of benzaldehyde in Molisch's test

    dark red solution

  • 81

    General test for saccharides

    Molisch's test

  • 82

    Reagent made of 10% a-naphthol in 95% ethanol

    Molisch's reagent

  • 83

    Molisch's reagent is named after _____ Molisch

    Hans

  • 84

    Positive result in Molisch's test

    purple ring at junction of two layers

  • 85

    Principle of Molisch''s test

    The reagent dehydrates pentoses to furfural derivatives and hexoses to 5-hydroxymethyl furfural derivatives; furfural compounds further react with α-naphthol producing a purple-colored product

  • 86

    In Molisch's test, monosaccharides yield _____ results while disaccharides react _____

    rapid, slower

  • 87

    Color of 5% ribose in Bial's test

    dark blue solution

  • 88

    Color of 5% glucose in Bial's test

    clear golden brown solution

  • 89

    Reagent made of orcinol, hydrochloric acid, and ferric chloride

    Bial's reagent

  • 90

    Bial's reagent is named after _____ Bial

    Manfred

  • 91

    Positive result in Bial's test

    blue solution

  • 92

    Principle of Bial's test

    The reagent dehydrates pentoses to form furfural; the furfural further reacts with orcinol and the ferric ion present in Bial’s reagent producing a bluish product