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100問 • 1年前
  • ユーザ名非公開
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    問題一覧

  • 1

    what is the common name for CH2=CHCH2Cl

    allyl chloride

  • 2

    Which of the following reagent CANNOT be used for preparing alkyl chlorides from alcohols

    NaCl

  • 3

    The reactivity of alkyl halides decreases in the following order

    RI>RBr<RCl<RF

  • 4

    Which of these compounds contain an asymmetric (chiral) carbon atom

    2-bromobutane

  • 5

    The hydrolysis of 4-chlorobenzyl chloride with a concentrated solution of sodium hydroxide results in

    p-hydroxybenzyl alcohol

  • 6

    The mild oxidation of which alcohol does NOT give a carbonyl compound?

    2,3-dimethyl1-3-pentanol

  • 7

    Hexane may be obtained in highest yield by Wurtz method from

    1-chloropropane

  • 8

    Which of the following compounds contains an aldehyde group?

    All listed compounds

  • 9

    Which of the following compounds is product of interaction between glucose and Fehling reagent

    CH2OH(CHOH)4COOH

  • 10

    Salicylic acid is stronger than benzoic acid because

    An intramolecular hydrogen bond is formed between the two functional groups

  • 11

    Phenols are more acidic than alcohols because

    The phenoxide ion is stabilised by resonance

  • 12

    The strongest acid among the following aromatic compound is

    Ortho nitrophenol

  • 13

    The following reaction scheme is given: 1,2-dibromoethane -> X->bromoethane->Y->ethyl acetate. Determine from the list compounds X and Y

    ethenw and ethanol

  • 14

    Which of the listed compounds is homologue of ethanal

    Methanal

  • 15

    The polyvalent alcohols are identified with

    Freshly precipitated copper (II) hydroxide

  • 16

    The reactions by which m-nitrophenol can be produced from benzene are

    sulfonation, nitration, reaction with sodium hydroxide, alkali melting

  • 17

    Which of the presented pairs are metamers

    CH3OCH2CH2CH3 and CH3CH2OCH2CH3

  • 18

    How a solution containing benzene,naphthalene, phenol and aniline can be separated

    The fennel is extracted after treatment with sodium hydroxide, the aniline is extracted after treatment with hydrochloric acid, and benzene and naphthalene through distillation

  • 19

    Which halogen notably does not react with methane by the chain linking mechanism

    Iodine

  • 20

    The amino acids do not interact with

    Salts

  • 21

    Polymerisation is characteristic for

    Ethene

  • 22

    How many carbon atoms in the molecule of acrylonitrile are in SP hybrid state?

    One

  • 23

    The maltose is

    a disaccharide consisting of glucose residues, an intermediate in the hydrolysis of starch

  • 24

    Which of the listed substances when interacting with methylamine gives a salt?

    Hydrogen bromide

  • 25

    Which of the listed compounds interacts with bromine water?

    Ethyn

  • 26

    Characteristic reactions for Alkenes are

    Addition

  • 27

    As a result in the reaction of polycondensation is formed

    Phenol formaldehyde resin

  • 28

    Ethyl is formed by addition of hydrogen two

    Ethanal

  • 29

    Which of the following amino acids is achiral?

    glycine

  • 30

    By which of the presented processes and interactions can be distinguished formic acid from ethanoic acid

    cuprum dihydroxide

  • 31

    Polypropylene is obtained from a substance with formula

    CH2=CH2

  • 32

    Upon interaction of phenol with bromine is formed a mixture of

    2-and 4-bromophenols

  • 33

    By the help of which reagent 1-propanol and 1,2,3- propantriol may be distinguished

    cooper (II) hydroxide

  • 34

    Ethanol can be oxidised step wise. What is the first stable intermediate product when ethanol is oxidised with a mild oxidation agent?

    CH3CHO

  • 35

    With which of the compounds ethanol, sodium hydroxide and acetic anhydride, salicylic acid is interacting

    Sodium hydroxide, ethanol and acetic anhydride

  • 36

    Which one of the following will give 1-butane as the only Allen’s by heating with concentrated sulfuric acid

    1-butanol

  • 37

    Glucose and fructose may be distinguished by interaction with

    Cu(OH)2

  • 38

    When methane ,CH4, burns in excess oxygen, the products would be

    CO2+ H2O

  • 39

    A carbonyl group is present in an all of these functional groups except

    Ethers

  • 40

    Which of the following is not classified as a carbohydrate?

    Glycine

  • 41

    What is the IUPAC name for the compound CH3CH2CH2CH2CHO

    Pentanal

  • 42

    Which of the following alcohols forms a ketone when oxidised?

    2-propanol

  • 43

    Which is not a physical property of alcohols and phenols

    The hydroxyl group of an alcohol is nonpolar

  • 44

    The benzine ring of benzaldehyde Substitutes at m-position to the aldehydegroup, because it has

    -M and -l effect

  • 45

    Carbonyl derivatives do not add one of the following substances

    Bromine

  • 46

    Under hydrolitic conditions sucrose yields

    Glucose and fructose

  • 47

    The molecular formula of glycerol is

    C3H5(OH)3

  • 48

    The interaction between which substances is an addition reaction

    Methane and chlorine

  • 49

    The colourless crystalline substance A is slightly soluble in water, it’s sublime when heated, and 2 mol of NaOH our needed for the neutralisation of 1 mol of A. Substance Ais.

    Salicylic acid

  • 50

    Which of the reagents can be used to identify glycerol?

    With freshly precipitated Cu(OH)2- dark blue coloration

  • 51

    Sucrose is a carbohydrate. The molecular formula of the compound is

    C12H22O11

  • 52

    Adding bromine to propane H2C=CH-CH3 gives

    1,2-dibromopropane

  • 53

    The unknown substance X in the following transition is: H2C=CH2–>X—>CH3CHO—>CH3COOH

    CH3CH2OH

  • 54

    The interaction of fats with an alkaline base in an aqueous medium during heating is used in the production of

    Soaps

  • 55

    The main components of the petrol are

    alkanes

  • 56

    The main component of the so-called ‘marsh gas’ or ‘swamp gas’ is

    Methane

  • 57

    What is substance X in the transition CH2=CH2–>X —>CH3CH2ONa

    CH3CH2OH

  • 58

    Oxidation of butanone produces

    I static and propionic acids, CO2 and H2O

  • 59

    Which of the following equations shows the alcoholic fermentation of glucose under the action of the enzymes chymase

    C6H12O6–>2C2H5OH + 2CO2

  • 60

    In which order are carboxylic acids arranged by increasing their acidic properties?

    Propionic, acetic, benzoic, formic

  • 61

    The vigourous oxidation of which isomer of hexane does not result in a mixture of acids

    3-hexene

  • 62

    In which order are the compounds arranged in order of increasing reactivity?

    CH3COC2H5, CH3COCH3 , CH3CHO , HCHO

  • 63

    Compound A is involved in addition reaction with HCN. After addition of hydrogen to A, 2-butanol is obtained. Which of the following compound is A

    CH3CH2COCH3

  • 64

    Oxidation of which alcohol does not produce a carbonyl compound

    2,3-dimethyl-1-2-butanol

  • 65

    The structural isomers of hexane differ in the position of the double bond. What is their number?

    Three

  • 66

    Under what conditions can hydrogen atoms in the side chain of toluence be replaced by atoms of halogen elements?

    Under illumination or at high temperature

  • 67

    In the interaction between substances A and B , ZnCl2 and CH3CH=CHCH3 are obtained. Substances A and B are.

    Zn and CH3CH(Cl)CH(Cl)CH3

  • 68

    When freshly precipitated Cu(OH)2 was added at room temperature to several test tubes with aqueous solutions of unknown substances, dark blue solution was observed in one of them. Therefore, in these tube there is an organic compound in the molecule of which there is.

    Two or more hydroxyl groups

  • 69

    A natural polymer is

    The rubber

  • 70

    Which of the organic compounds shown has a chemical bond formed by overlapping sp2 and so hybrid orbitals

    CH2=CH=CH2

  • 71

    Hydrogen bones cannot form between molecules of

    CH3CHO and CH3COCH3

  • 72

    State the general molecular form of the homologous series of Alkanes

    CnH2n+2

  • 73

    Oxidation of ethylene (CH2=CH2) produces

    1,2-ethanediol

  • 74

    A phenolic hydroxyl group can be identified with a dilute aqueous solution of

    FeCl3

  • 75

    The equation: C2H5OH +HCOOH —><—HCOOC2H5+ H2O expresses the process

    esterification

  • 76

    In the molecules of α-amino acids, the groups -NH2 and -COOH are connected to

    The first carbon atom

  • 77

    Which of the following carbohydrates contains molecules within an aldehyde group?

    Glucose

  • 78

    Which of the following compounds does not react within an ammonia solution of Ag2O

    3-hexanone

  • 79

    The two functional groups in α-amino acids interact with each other and form in molecular salts. It is due to them…

    All of the above properties

  • 80

    In which hydrocarbon conversation process do the final products contain a greater number of carbon atoms than the starting substances?

    wurtz Synthesis

  • 81

    Benzaldehyde is involved in substitution reactions affecting the aromatic nucleus. in which place are the substitutes oriented?

    m-position

  • 82

    From which substance can 2-propanol be obtained directly

    CH3-CH=CH2

  • 83

    Polymethyl methacrylate is obtained by polarisation of

    CH2=C(CH3)COOCH3

  • 84

    Region for the quality identification of starch is

    Alcoholic solution of iodine

  • 85

    Which of the following assets has optical isomers?

    Lactic acid

  • 86

    Positional isomerism is possible with

    amino acids, ketones, alkynes

  • 87

    Which of the following substances does not react with freshly precipitated Cooper de hydroxide?

    propanone

  • 88

    Which chain of chemical reactions is not possible?

    C2H5OH—>C2H5CHO—>C2H5COOH

  • 89

    Optical isomerism is not characteristic of

    2-amino-2-methylpropanoic acid

  • 90

    The molecular formula C6H12O6 corresponds to the compound

    Glucose and fructose

  • 91

    Cellulose dissolves in

    Sweitzers reagent

  • 92

    What are the reactants that form the compound CH3CH2COOCH2CH3

    ethanol and propanoic acid

  • 93

    From which compound is hexan-3-one obtained as the only organic product under the conditions of the Kucherov reaction

    CH3CH2C-=CCH2CH3

  • 94

    The acylation of benzene with propanol chloride according to Friedel-crafts reaction takes place in the presence of a catalyst

    aluminium trichloride

  • 95

    Region for qualitative identification of ethylene glycol is

    Freshly precipitated Cu(OH)2

  • 96

    The chain radical halogenation of alkanes occurs under the action

    Diffuse sunlight

  • 97

    The compound(E)-3-methylbex-3-ene and (Z)-hept-2-ene are

    Constitutional (structural) isomers

  • 98

    If an alkane contains 24 hydrogen atoms, how many carbon atoms does it have?

    11

  • 99

    Ethanol has a lower boiling point than water because

    The attraction between the molecules is weaker

  • 100

    When organic compounds combust in a plentiful supply of air, what are the products?

    Carbon dioxide and water

    • chemistry

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    ユーザ名非公開 · 100問 · 1年前

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    100問 • 1年前
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    ユーザ名非公開 · 36問 · 1年前

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    36問 • 1年前
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    問題一覧

  • 1

    what is the common name for CH2=CHCH2Cl

    allyl chloride

  • 2

    Which of the following reagent CANNOT be used for preparing alkyl chlorides from alcohols

    NaCl

  • 3

    The reactivity of alkyl halides decreases in the following order

    RI>RBr<RCl<RF

  • 4

    Which of these compounds contain an asymmetric (chiral) carbon atom

    2-bromobutane

  • 5

    The hydrolysis of 4-chlorobenzyl chloride with a concentrated solution of sodium hydroxide results in

    p-hydroxybenzyl alcohol

  • 6

    The mild oxidation of which alcohol does NOT give a carbonyl compound?

    2,3-dimethyl1-3-pentanol

  • 7

    Hexane may be obtained in highest yield by Wurtz method from

    1-chloropropane

  • 8

    Which of the following compounds contains an aldehyde group?

    All listed compounds

  • 9

    Which of the following compounds is product of interaction between glucose and Fehling reagent

    CH2OH(CHOH)4COOH

  • 10

    Salicylic acid is stronger than benzoic acid because

    An intramolecular hydrogen bond is formed between the two functional groups

  • 11

    Phenols are more acidic than alcohols because

    The phenoxide ion is stabilised by resonance

  • 12

    The strongest acid among the following aromatic compound is

    Ortho nitrophenol

  • 13

    The following reaction scheme is given: 1,2-dibromoethane -> X->bromoethane->Y->ethyl acetate. Determine from the list compounds X and Y

    ethenw and ethanol

  • 14

    Which of the listed compounds is homologue of ethanal

    Methanal

  • 15

    The polyvalent alcohols are identified with

    Freshly precipitated copper (II) hydroxide

  • 16

    The reactions by which m-nitrophenol can be produced from benzene are

    sulfonation, nitration, reaction with sodium hydroxide, alkali melting

  • 17

    Which of the presented pairs are metamers

    CH3OCH2CH2CH3 and CH3CH2OCH2CH3

  • 18

    How a solution containing benzene,naphthalene, phenol and aniline can be separated

    The fennel is extracted after treatment with sodium hydroxide, the aniline is extracted after treatment with hydrochloric acid, and benzene and naphthalene through distillation

  • 19

    Which halogen notably does not react with methane by the chain linking mechanism

    Iodine

  • 20

    The amino acids do not interact with

    Salts

  • 21

    Polymerisation is characteristic for

    Ethene

  • 22

    How many carbon atoms in the molecule of acrylonitrile are in SP hybrid state?

    One

  • 23

    The maltose is

    a disaccharide consisting of glucose residues, an intermediate in the hydrolysis of starch

  • 24

    Which of the listed substances when interacting with methylamine gives a salt?

    Hydrogen bromide

  • 25

    Which of the listed compounds interacts with bromine water?

    Ethyn

  • 26

    Characteristic reactions for Alkenes are

    Addition

  • 27

    As a result in the reaction of polycondensation is formed

    Phenol formaldehyde resin

  • 28

    Ethyl is formed by addition of hydrogen two

    Ethanal

  • 29

    Which of the following amino acids is achiral?

    glycine

  • 30

    By which of the presented processes and interactions can be distinguished formic acid from ethanoic acid

    cuprum dihydroxide

  • 31

    Polypropylene is obtained from a substance with formula

    CH2=CH2

  • 32

    Upon interaction of phenol with bromine is formed a mixture of

    2-and 4-bromophenols

  • 33

    By the help of which reagent 1-propanol and 1,2,3- propantriol may be distinguished

    cooper (II) hydroxide

  • 34

    Ethanol can be oxidised step wise. What is the first stable intermediate product when ethanol is oxidised with a mild oxidation agent?

    CH3CHO

  • 35

    With which of the compounds ethanol, sodium hydroxide and acetic anhydride, salicylic acid is interacting

    Sodium hydroxide, ethanol and acetic anhydride

  • 36

    Which one of the following will give 1-butane as the only Allen’s by heating with concentrated sulfuric acid

    1-butanol

  • 37

    Glucose and fructose may be distinguished by interaction with

    Cu(OH)2

  • 38

    When methane ,CH4, burns in excess oxygen, the products would be

    CO2+ H2O

  • 39

    A carbonyl group is present in an all of these functional groups except

    Ethers

  • 40

    Which of the following is not classified as a carbohydrate?

    Glycine

  • 41

    What is the IUPAC name for the compound CH3CH2CH2CH2CHO

    Pentanal

  • 42

    Which of the following alcohols forms a ketone when oxidised?

    2-propanol

  • 43

    Which is not a physical property of alcohols and phenols

    The hydroxyl group of an alcohol is nonpolar

  • 44

    The benzine ring of benzaldehyde Substitutes at m-position to the aldehydegroup, because it has

    -M and -l effect

  • 45

    Carbonyl derivatives do not add one of the following substances

    Bromine

  • 46

    Under hydrolitic conditions sucrose yields

    Glucose and fructose

  • 47

    The molecular formula of glycerol is

    C3H5(OH)3

  • 48

    The interaction between which substances is an addition reaction

    Methane and chlorine

  • 49

    The colourless crystalline substance A is slightly soluble in water, it’s sublime when heated, and 2 mol of NaOH our needed for the neutralisation of 1 mol of A. Substance Ais.

    Salicylic acid

  • 50

    Which of the reagents can be used to identify glycerol?

    With freshly precipitated Cu(OH)2- dark blue coloration

  • 51

    Sucrose is a carbohydrate. The molecular formula of the compound is

    C12H22O11

  • 52

    Adding bromine to propane H2C=CH-CH3 gives

    1,2-dibromopropane

  • 53

    The unknown substance X in the following transition is: H2C=CH2–>X—>CH3CHO—>CH3COOH

    CH3CH2OH

  • 54

    The interaction of fats with an alkaline base in an aqueous medium during heating is used in the production of

    Soaps

  • 55

    The main components of the petrol are

    alkanes

  • 56

    The main component of the so-called ‘marsh gas’ or ‘swamp gas’ is

    Methane

  • 57

    What is substance X in the transition CH2=CH2–>X —>CH3CH2ONa

    CH3CH2OH

  • 58

    Oxidation of butanone produces

    I static and propionic acids, CO2 and H2O

  • 59

    Which of the following equations shows the alcoholic fermentation of glucose under the action of the enzymes chymase

    C6H12O6–>2C2H5OH + 2CO2

  • 60

    In which order are carboxylic acids arranged by increasing their acidic properties?

    Propionic, acetic, benzoic, formic

  • 61

    The vigourous oxidation of which isomer of hexane does not result in a mixture of acids

    3-hexene

  • 62

    In which order are the compounds arranged in order of increasing reactivity?

    CH3COC2H5, CH3COCH3 , CH3CHO , HCHO

  • 63

    Compound A is involved in addition reaction with HCN. After addition of hydrogen to A, 2-butanol is obtained. Which of the following compound is A

    CH3CH2COCH3

  • 64

    Oxidation of which alcohol does not produce a carbonyl compound

    2,3-dimethyl-1-2-butanol

  • 65

    The structural isomers of hexane differ in the position of the double bond. What is their number?

    Three

  • 66

    Under what conditions can hydrogen atoms in the side chain of toluence be replaced by atoms of halogen elements?

    Under illumination or at high temperature

  • 67

    In the interaction between substances A and B , ZnCl2 and CH3CH=CHCH3 are obtained. Substances A and B are.

    Zn and CH3CH(Cl)CH(Cl)CH3

  • 68

    When freshly precipitated Cu(OH)2 was added at room temperature to several test tubes with aqueous solutions of unknown substances, dark blue solution was observed in one of them. Therefore, in these tube there is an organic compound in the molecule of which there is.

    Two or more hydroxyl groups

  • 69

    A natural polymer is

    The rubber

  • 70

    Which of the organic compounds shown has a chemical bond formed by overlapping sp2 and so hybrid orbitals

    CH2=CH=CH2

  • 71

    Hydrogen bones cannot form between molecules of

    CH3CHO and CH3COCH3

  • 72

    State the general molecular form of the homologous series of Alkanes

    CnH2n+2

  • 73

    Oxidation of ethylene (CH2=CH2) produces

    1,2-ethanediol

  • 74

    A phenolic hydroxyl group can be identified with a dilute aqueous solution of

    FeCl3

  • 75

    The equation: C2H5OH +HCOOH —><—HCOOC2H5+ H2O expresses the process

    esterification

  • 76

    In the molecules of α-amino acids, the groups -NH2 and -COOH are connected to

    The first carbon atom

  • 77

    Which of the following carbohydrates contains molecules within an aldehyde group?

    Glucose

  • 78

    Which of the following compounds does not react within an ammonia solution of Ag2O

    3-hexanone

  • 79

    The two functional groups in α-amino acids interact with each other and form in molecular salts. It is due to them…

    All of the above properties

  • 80

    In which hydrocarbon conversation process do the final products contain a greater number of carbon atoms than the starting substances?

    wurtz Synthesis

  • 81

    Benzaldehyde is involved in substitution reactions affecting the aromatic nucleus. in which place are the substitutes oriented?

    m-position

  • 82

    From which substance can 2-propanol be obtained directly

    CH3-CH=CH2

  • 83

    Polymethyl methacrylate is obtained by polarisation of

    CH2=C(CH3)COOCH3

  • 84

    Region for the quality identification of starch is

    Alcoholic solution of iodine

  • 85

    Which of the following assets has optical isomers?

    Lactic acid

  • 86

    Positional isomerism is possible with

    amino acids, ketones, alkynes

  • 87

    Which of the following substances does not react with freshly precipitated Cooper de hydroxide?

    propanone

  • 88

    Which chain of chemical reactions is not possible?

    C2H5OH—>C2H5CHO—>C2H5COOH

  • 89

    Optical isomerism is not characteristic of

    2-amino-2-methylpropanoic acid

  • 90

    The molecular formula C6H12O6 corresponds to the compound

    Glucose and fructose

  • 91

    Cellulose dissolves in

    Sweitzers reagent

  • 92

    What are the reactants that form the compound CH3CH2COOCH2CH3

    ethanol and propanoic acid

  • 93

    From which compound is hexan-3-one obtained as the only organic product under the conditions of the Kucherov reaction

    CH3CH2C-=CCH2CH3

  • 94

    The acylation of benzene with propanol chloride according to Friedel-crafts reaction takes place in the presence of a catalyst

    aluminium trichloride

  • 95

    Region for qualitative identification of ethylene glycol is

    Freshly precipitated Cu(OH)2

  • 96

    The chain radical halogenation of alkanes occurs under the action

    Diffuse sunlight

  • 97

    The compound(E)-3-methylbex-3-ene and (Z)-hept-2-ene are

    Constitutional (structural) isomers

  • 98

    If an alkane contains 24 hydrogen atoms, how many carbon atoms does it have?

    11

  • 99

    Ethanol has a lower boiling point than water because

    The attraction between the molecules is weaker

  • 100

    When organic compounds combust in a plentiful supply of air, what are the products?

    Carbon dioxide and water