- •Choose the correct range of acidity increase for the following compounds.
- •Formic acid
- •*Formic acid
- •Choose the correct range of acidity increase for the following compounds.
- •What is the identity of the intermediate (a) and the end-product (b) in the
- •To which group of lipids do terpenes belong?
- •Which group of compounds does borneol belong?
- •Which group of compounds does α-pinene belong?
- •Determine what compound will form after the glucose oxidation by Felling reagent:
- •What reaction do monosaccharides in the cyclic form?
*
Which of the following reactions leads to the formation of acetophenone?
*
Compound with characteristic smell, which changes coloration of litmus paper, forms gas after the adding of zinc and gives „silver mirror” reaction, is:
НС(О)Н
С6Н5ОН
*НСООН
СН3С(О)Н
СН3СООН
At the interaction of carboxylic acids with alcohols at the heating in the presence of H2SO4 form:
Aldehydes
Ethers
Phenols
Ketones
*Esters
Potassium stearate – liquid soap, its formula:
C17H33COOK
*C17H35COOK
C17H31COOK
C17H29COOK
C3H7COOК
Choose formula of unsaturated carboxylic acid:
*C17H33COOH
C17H35COOH
C3H7COOH
C10H21COOH
C12H23COOH
Which of the following carboxylic acids has properties of aldehyde and acid?
CH2Cl – COOH
CH3COOH
*HCOOH
CCl3 – COOH
C3H7COOH
Which of the following compounds is a product of propanoic acid chlorination?
CH3 – CH2 – COCl
*CH3 – CHCl – COOH
CH2Cl – CH2 – COOH
CH3 – CH2 – COOCl
C3H7COOH
Choose the strongest carboxylic acid:
CH3COOH.
CH3CH2COOH.
CH2Cl – COOH.
*CCl3 – COOH.
CH3CH2CH2COOH
In the reaction CH3CH2COOH + NaHCO3 the following gaseous product forms:
CH4
CO
*CO2
C2H6
C2H4
Among of the following compounds specify formula of chloroacetic acid:
CH3COOH
*CH2(Сl)COOH
CH2(NH2)COOH
CH2(CH3)COOH
CСl3COOH
Determine reaction that cases propanoic acid formation:
CH3-C(O)H + [O] - CH3-COOH
H-C(O)H + [O] - H-COOH
CH3-CH2-CH2-C(O)H + [O] - CH3-CH2-CH2-COOH
*CH3-CH2-C(O)H + [O] - CH3-CH2-COOH
CH3-CH2-CH2-CH2-C(O)H + [O] - CH3-CH2-CH2-CH2-COOH
Soap belongs to the following class of compounds:
Alcohols
Carboxylic acids
Esters
*Salts
Phenols
Ethyl ester of acetic acid can be obtained by the following reaction:
CH3-CH2-OH + CH3-CH2-OH -
CH3-COOH + CH3-COOH -
*CH3-COOH + CH3-CH2-OH -
CH3 COOH + CH3-OH -
CH3-COOH + Na2CO3
Specify compound, which with acetic acid will not form salts:
*CH3-COOH + C2H5OHO
CH3-COOH + Na2CO3
CH3-COOH + Na
CH3-COOH + Mg
CH3-COOH + CH3-COOH
Lead (ІІ) acetate has the following formula:
Pb(OH)CH3COO
Pb(CH3COO)4
*Pb(CH3COO)2
Pb(CH3COO)3
Pb(CH3COO)5
In the reaction CH3-COOH + NaOH = the following compounds form:
*CH3-COONa + H2O
CH3-COONa + H2
CH3-COONa + O2
2CH3-COONa + H2O2
3CH3-COONa + H2O2
At the interaction of acetic acid and magnesium (CH3?COOH + Mg) gas … evaporates:
CO2
CO
*H2
H2O(water steam)
С2Н2
Ion CH3-COO- has the following name:
Formiate
Carbonate
Hydrocarbonate
*Acetate
Dihydrocarbonate
125. Specify compound, which will not interact with acetic acid:
Nа
NaOH
Na2O
*CO2
Mg
Specify compound, which will interact with carboxylic acids:
*NaOH
CO2
H2O
NaCl
KBr
Litmus paints solution of acetic acid in ... color:
Green
*Red
Blue
Colorless
Purple
For the detection of acetic acid can be used:
*Indicator and sodium hydrogen carbonate
Bromine water
Freshly precipitated Cu(OH)2
Ammonium solution of Ag2O
Lime water
In the esterification reaction ОН-group eliminates (for the water formation) from the molecule of:
Alcohol
Ketone
Aldehyde
*Acid
Phenol
Method of formic acid obtaining:
Ethane oxidation
*Methane oxidation
Phenol oxidation
Reaction of СН3ОН with СО
Ethylene oxidation
For the acetic acid obtaining, as primer compound is used:
HCOON
CH3OH
C4H10
C3H7OH
*С2Н2
Glycerin and stearic acid can be obtained by the reaction of:
Etherification
Hydrolysis of carbohydrates
Esterification
*Hydrolysis of fat
Hydratation of carbohydrates
Glycerin and palmitic acid can be obtained by the reaction of:
Cracking of petroleum
Esterification
*Hydrolysis of fat
Hydrolysis of carbohydrates
Hydratation of carbohydrates
At the hydrolysis of solid fats the following acid forms:
Glycerin
Formic acid
Ethylene glycol
Acetic acid
*Stearic acid
Which of the following reaction conducts with hydrogen evaporation?
*СН3 – СООН + Са
СН3 – СООН + NaOH
СН3 – СООН + СаО
СН3 – СООН + СН3OH O
СН3 – СООН + Са(ОН)2
Choose the reaction of Carbon (ІV) oxide formation:
СН3 – СООН + NaOH
СН3 – СООН + Zn
*СН3 – СООН + Na2СO3
СН3 – СООН + СаО
СН3 – СООН + Са(ОН)2
Which of the following properties are common for methanoic and hydrochloric acid?
Interaction with alkalis and ammonium solution of Ag2O
*Interaction with metals and alkalis
Action of conc. Н2SO4.
Decomposition at the heating
Interaction with fuxin sulfite acid
In which of the following rows all compounds will react with formic acid?
СН3С(О)Н; СН3 – ОН; СН3СООН
*С2Н5ОН; Ag2O(ammonium solution); Мg(met.)
Сu(OH)2; Na2CO3; C3H8
CH4; NaOH; CH3Cl
Сu(OH)2; CH4; NaOH; CH3Cl
Functional group -COOH has the name:
Aldehyde-group
Hydroxyl group
*Carboxyl group
Keto-group
Phenol hydroxyl
Saturated monobasic carboxylic acids have the following general formula:
R-OH
R-C(O)H
R-CH2-OH
*R-COOH
R-C(O)OR
Among of the following compounds specify formula of carboxylic acid:
*CH3-COOH
CH3-OH
CH3-CH2-OH
CH3-COH
CH3-C(O)OCH3
Methanoic acid has the following formula:
CH3-COOH
CH3-OH
CH3-CH2-OH
*H-COOH
CH3-COH
Choose chemical formula of valeric acid:
CH3COOH
CH3CH2COOH
CH3CH2CH2COOH
*CH3CH2CH2CH2COOH
CH3CH2CH2CH2CH2CH2COOH
Choose chemical formula of butyric acid:
CH3COOH
CH3CH2COOH
*C3CH2CH2COOH
CH3CH2CH2CH2COOH
CH3CH2CH2CH2CH2CH2COOH
The strongest monobasic saturated carboxylic acid is the following one:
*HCOOH
CH3COOH
CH3CH2COOH
CH3CH2CH2COOH
CH3CH2CH2CH2CH2CH2COOH
To distinguish formic acid from acetic acid the following reagent can be used:
NH3
NaOH
*[Ag(NH3)2]OH
NaHCO3
Ca(OH)2
Salts of methanoic acid are called:
Acetates
Carbonates
Lactates
Propionates
*Formiates
Formic acid, except acidic properties, also has properties of:
Alcohols
Ketones
*Aldehydes
Amines
Phenols
Product of the formic acid dehydration is:
СО2
*СО
СН4
С2Н2
С2Н4
Organic product of the interaction of carboxylic acid with alcohol is:
*Ester
Ether
Ketone
Aldehyde
Anhydride
At the total reduction of carboxylic acids are formed:
*Alcohols
Aldehydes
Ketones
Esters
Ethers
Choose the formula of ammonium acetate:
NH4Cl
*CH3COONH4
HCOONH4
CH3COON
СН3СН2СООNH4
What compound has the biggest acidic properties?
Ethanol
Glycerin
Acetic acid
*Formic acid
Phenol
Gaseous product of the “silver mirror” reaction by the participant of methanoic acid is:
CH4
H2
CO
*CO2
С2Н2
Gaseous product of the methanoic acid dehydration is:
CH4
H2
*CO
CO2
С2Н2
Compound НСООН gives reactions, which are characteristic for:
Organic acids and alcohols
*Organic acids and aldehydes
Alcohols and aldehydes
Aldehydes and esters
Phenols and aldehydes
How many asymmetric carbon atoms and possible stereoisomers does tartaric acid have?
no asymmetric carbon atoms and it is optically inactive
two asymmetric carbon atoms and two stereoisomers
*two asymmetric carbon atoms and three stereoisomers
two asymmetric carbon atoms and four stereoisomers
one asymmetric carbon atom and two stereoisomers
How many asymmetric carbon atoms and possible stereoisomers does malic acid have?
no asymmetric carbon atoms and it is optically inactive
two asymmetric carbon atoms and four stereoisomers
*one asymmetric carbon atom and two stereoisomers
one asymmetric carbon atom and one stereoisomer
two asymmetric carbon atoms and two stereoisomers
Which of the following reagent interact with carboxylic-group of
α-bromopropanoic acid?
*
How many asymmetric carbon atoms and possible stereoisomers does lactic acid have?
no asymmetric carbon atoms and it is optically inactive
two asymmetric carbon atoms and four stereoisomers
two asymmetric carbon atoms and two stereoisomers
*one asymmetric carbon atom and two stereoisomers
one asymmetric carbon atom and one stereoisomer
Which hydroxyacid does decompose at treatment with conc. H2SO4 according to the following scheme?
*
Which hydroxyacid decomposes at treatment with conc. H2SO4 according to the following scheme?
*
Which hydroxyacid decomposes at treatment with conc. H2SO4 according to the following scheme?
*
What is the product of reaction between pyruvic acid and hydroxylamine?
*
What products are formed when diethylacetoacetic ester is treated with diluted
mineral acid?
*
What products are formed when methylpropylacetoacetic ester is treated with concentrated solution of alkali?
*
What product is formed when γ -hydroxyvaleric acid is heated?
*
What product is formed when β -hydroxybutyric acid is heated?
*
Choose the correct range of acidity increase for the following compounds.
d > b > a > c
d < b < a < c
c < b < a < d
b < a < c < d
*c < d < b < a
Which is the product of salicylic acid nitration?
*
How many asymmetric carbon atoms and possible stereoisomers does α-hydroxybutyric acid have?
no asymmetric carbon atoms and it is optically inactive
two asymmetric carbon atoms and one stereoisomer
one asymmetric carbon atom and one stereoisomer
two asymmetric carbon atoms and two stereoisomers
*one asymmetric carbon atom and two stereoisomers
Malic acid is:
monobasic biatomic acid
tribasic biatomic acid
*dibasic triatomic acid
dibasic monoatomic acid
tribasic triatomic acid
What product is formed when tartaric acid is heated in the presence of KHSO4?
*
What product is formed when γ-hydroxybutyric acid is heated?
*
What is the identity of the reagent ¬¡ and intermediate B in the following scheme?
*
Choose the pair of reagents which can be used to obtain β-hydroxybutyric acid by Reformatsky reaction.
*
Choose the correct name of the following compound.
oxoketoglutaric acid
α-ketopentanedioic acid
*β- ketoglutaric acid
2- ketoglutaric acid
oxopentanedioic acid
Choose the correct name of the following compound.
chlorosuccinic acid
3- chlorobutyric acid
*3- chlorobutanoic acid
α - chloropentanoic acid
3-chloropentanoic acid
Which of the following reagent shall react with both functional groups of β-
chloropropanoic acid?
*
Citric acid is:
monobasic triatomic acid
tribasic monoatomic acid
*tribasic tetraatomic acid
tetrabasic triatomic acid
tribasic triatomic acid
Trataric acid is:
tribasic tetraatomic acid
tetrabasic tetraatomic acid
tetrabasic biatomic acid
*dibasic tetraatomic acid
dibasic biatomic acid
Which hydroxycarboxylic acid decomposes at treatment with conc. H2SO4
according to the following scheme?
*
Which way does citric acid decomposes?
*
What product is formed when α-hydroxypropanoic acid is heated?
*
What products are formed when acetoacetic ester is treated with concentrated solution of alkali?
*
What product is formed when urea is slowly heated?
*
What products are formed when ethylacetoacetic ester is treated with diluted
mineral acid?
*
Which is the product of the following reaction?
*
What products are formed when methylacetoacetic ester is treated with diluted mineral acid?
*
Which wayα-chlorosuccinic acid could be obtained?
*
Which of the following is α - ketoglutaric acid?
*
Which of the following compounds is glyoxylic acid?
*
Which way α-chloropropanoic acid could be obtained?
*
Which of the following is tartaric acid?
*
Which of the following reaction lead to formation of pyruvic acid?
*
Which of the following is acetylsalicylic acid?
*
Which of the following is salicylic acid?
*
Which of the following is citric acid?
*
Which of the following is oxalacetic acid?
*
Which of the following is acetoacetic acid?
*
Which of the following compounds is o-hydroxycinnamic acid?
*
Which of the following compounds is malic acid?
*
Choose the correct name of the following compound.
propylbromoacetic acid
α - bromovaleric acid
2-bromo-3-methylpropanoic acid
*2-bromo-3-methylbutanoic acid
α - bromobutyric acid
Salicylic acid has two acidic centers and therefore forms two rows of salts. What reagent can be used to form disodium salt of salicylic acid?
*NaOH
NaНCO3
NaCl
Na2SO4
CH3COONa
α–Hydroxyacids at the heating will form:
lactides
*lactones
saturated α-acids
esters with open carbon chain
acetoacetic ester
Salicylic acid has two acidic centers and therefore forms two rows of salts. What reagent can be used to form disodium salt of salicylic acid?
*NaOH
NaНCO3
NaCl
Na2SO4
CH3COONa
Choose acid, which forms -lactone after the heating?
pyruvic
glycolic
lactic
*4-hydroxybutanoic
malic
At the adding to the organic compound FeCl3, dark violet color will form. Name this compound?
benzoic acid
benzene
toluene
acetylsalicylic acid
*salicylic acid
Galic acid is a part of thiamine. To which class of compounds does this acid belong?
alcohol acids
*phenoloacids
aminoacids
aldehyde acids
ketoacids
What compound will form at the interaction of lactic acid with excess of SOCl2?
2-chloropropanoic acid
chloroanhydride of lactic acid
*chloroanhydride of 2-chloropropanoic acid
2-chlorolactic acid
3-chlorolactic acid
What reagent is used for the acetoacetic ester determination?
*FeCl3
CuSO4
Formaldehyde
Ethyl alcohol
KMO4
Which of the following reagents will react with glyoxylic acid by aldehyde group?
Nа
NaOH
SОCl2
*NH2OH
NaHCO3
Which of the following reagents will react with glyoxylic acid by aldehyde group?
Nа
NaHCO3
NaOH
SОCl2
*Ag(NH3)2OH
Which of the following reagents will react with glyoxylic acid by aldehyde group?
NaOH
NaHCO3
*HCN
SОCl2
Nа
Which of the following reagents will react with glyoxylic acid by aldehyde group?
NaHCO3
*NH2NH2
NaOH
SОCl2
Nа
Which of the following reagents will react with glyoxylic acid by aldehyde group?
*NH2NHC6H5
NaHCO3
NaOH
SОCl2
Nа
Which of the following reagents will react with glyoxylic acid by aldehyde group?
Nа
NaHCO3
NaOH
SОCl2
*NH2NHC(O)NH2
Which of the following reagents will react with glyoxylic acid by aldehyde group?
NaOH
NaHCO3
*NH2NHC(S)NH2
SОCl2
Nа
Which of the following reagents will react with glyoxylic acid by carboxylic group?
Ag(NH3)2OH
C6H5NHNH2
NH2OH
*NaHCO3
NH2NH2
Which of the following reagents will react with glyoxylic acid by carboxylic group?
Ag(NH3)2OH
*NaOH
NH2OH
C6H5NHNH2
NH2NH2
Which of the following reagents will react with glyoxylic acid by carboxylic group?
*Na2CO3
Ag(NH3)2OH
NH2OH
C6H5NHNH2
NH2NH2
Which of the following reagents will react with glyoxylic acid by carboxylic group?
Ag(NH3)2OH
NH2NH2
NH2OH
C6H5NHNH2
*Na
Which of the following reagents will react with glyoxylic acid by carboxylic group?
Ag(NH3)2OH
C6H5NHNH2
NH2OH
*C2H5OH
NH2NH2
Which of the following reagents will react with glyoxylic acid by carboxylic group?
Ag(NH3)2OH
*CH3OH
NH2OH
C6H5NHNH2
NH2NH2
Which of the following reagents will react with acetoacetic acid by keto-group?
Nа
NaOH
*NaHSO3
SОCl2
NaHCO3
Which of the following reagents will react with acetoacetic acid by keto-group?
NaOH
*NH2OH
SОCl2
Nа
NaHCO3
Which of the following reagents will react with acetoacetic acid by keto-group?
Nа
NaHCO3
NaOH
SОCl2
*NH3
Which of the following reagents will react with acetoacetic acid by keto-group?
SОCl2
NaHCO3
NaOH
*HCN
Nа
Which of the following reagents will react with acetoacetic acid by keto-group?
*NH2NH2
NaHCO3
NaOH
SОCl2
Nа
Which of the following reagents will react with acetoacetic acid by keto-group?
NaHCO3
*NH2NHC6H5
NaOH
SОCl2
Nа
Which of the following reagents will react with acetoacetic acid by keto-group?
NaOH
NaHCO3
*NH2NHC(O)NH2
SОCl2
Nа
Which of the following reagents will react with acetoacetic acid by keto-group?
SОCl2
NaHCO3
NaOH
*NH2NHC(S)NH2
Nа
Which of the following reagents will react with acetoacetic acid by carboxylic group?
Ag(NH3)2OH
NH2NH2
NH2OH
C6H5NHNH2
*NaHCO3
Which of the following reagents will react with acetoacetic acid by carboxylic group?
*NaOH
Ag(NH3)2OH
NH2OH
C6H5NHNH2
NH2NH2
Which of the following reagents will react with acetoacetic acid by carboxylic group?
Ag(NH3)2OH
NH2OH
*Na2CO3
C6H5NHNH2
NH2NH2
Which of the following reagents will react with acetoacetic acid by carboxylic group?
Ag(NH3)2OH
*Na
NH2OH
C6H5NHNH2
NH2NH2
Which of the following reagents will react with acetoacetic acid by carboxylic group?
Ag(NH3)2OH
NH2NH2
NH2OH
C6H5NHNH2
*C2H5OH
Which of the following reagents will react with acetoacetic acid by carboxylic group?
Ag(NH3)2OH
C6H5NHNH2
NH2OH
*CH3OH
NH2NH2
γ-Aminobutyric acid takes part in the brain metabolism, is a neuromediator. What substances important for the medicine will γ-aminoacids form at the heating?
*lactames
unsaturated acids
diketopiperazine
lactides
lactones
At the heating of α–aminoacids will form:
lactones
lactides
*diketopiperazine
esters
unsaturated aminoacids
What compound after the heating does form lactame?
3-aminobutanoic acid
*4-aminobutanoic acid
3-hydroxypentanoic acid
4-amonobenzoic acid
3-aminopropanoic acid
Tyrosine belongs to the aromatic aminoacids. Choose the most correct systematic name foe tyrosine:
*2- amino – 3-(p-hydroxyphenyl) propanoic acid
α- amino-2-hydroxyphenyl propanoic acid
α-amino-4-hydroxyphenyl propanoic acid
2-amino-3-hydroxyphenyl propanoic acid
2-amino-3-(m-hydroxyphenyl) propanoic acid
Which of the following acids includes asymmetric carbon atom and has optical activity?
(СН3)2-С(ОН)-СООН (α-hydroxyisobutyric acid)
С6Н5СН2СООН (phenylacetic acid)
СН3-С(О)-СООН (pyruvic acid)
*СН3-СН(NН2)-СООН (α-aminopropionic acid)
СН2=СН-СООН (acrylic acid)
Choose acid, which forms γ-lactone after the heating?
malic
glycolic
lactic
pyruvic
*4-hydroxybutyric
Alanine – aminoacid enters to the protein structure. Choose reagent, which can help to confirm presence of amino-group:
*NaNO2 (HCl)
H2SO4
NaNO3 (HCl)
Ba(OH)2
NaHCO3
Choose reagent that is used to protect amino-group of alanine:
CH3–CH2–Cl
CH3OH
*CH3COCl
CH3–NH2
CH3–CHO
What reaction is used for deamination of α-aminopropionic acid?
etherification
with formaldehyde
salts formation
*with nitrite acid
acylation
Aromatic aminoacids can be detected by the usage of the specific reaction:
biuret reaction
*xantoprotein sample
at the boiling with alkalis with following adding of lead acetate
with Felling reagent
interaction with ninhydrin
Point, which of the following w-aminoacids contains imidazole cycle:
alanine
tryptophan
tyrosine
glycine
*histidine
What reagent can be used to confirm presence of the primary amino-group in the serotonin molecule?
AgNO3 and NH4OH
*NaNO2 (H+)
Br2
NaHCO3
H2N-NH2
Chose reaction of phosgene obtaining:
СО2 + Н2О >
С + Н2 + Cl2 >
*СО + Cl2 >
СО2 + Cl2 >
Cl2 + СН4 >
Process 2NH3 + CO2 > cases formation of:
Ether of carbaminic acid
Carbaminic acid
Uretane
Methyl urea
*Urea
Which of the following reactions will case formation of methane sulfoacid?
СН4 + SO2 >
*СН4 + SO3 > (at the presence of H2SO4 conc.)
С + Н2 + SO2 >
СO2 + Н2O + SO2 >
СН4 + SO2 > (at the higher pressure)
What reaction will case formation of benzene sulfoacid?
*C6H6 + H2SO4 > (oleum)
C6H6 + SO3 >
C6H6 + SO2 >
C6H6 + S + O2 >
C6H6 + SO2 + H2O >
1,3,5-benzene trisulfonic acid forms as a result of double sulfonation of benzene sulfoacid. Choose the mechanism of this reaction.
AN
SN1
SN2
*SE
AE
As a result of melting of sulfoacids with alkalis the following compounds form:
Sulfites
Sulfates
Hydrosulfates
*Sulfonates
Carbonates
What compound can be obtained by the following reaction? СО + Cl2 >
Urethane
Chlorocarbonic acid
*Phosgene
Carbamide
Carbaminic acid
Benzolsulfoacid reduces to:
Sulfur and toluene
Sulfur oxide (VІ)
Benzene and sulfur
Sulfur oxide (ІV)
*Thiophenol
For arenesulfoacids the following reactions are characteristic:
AE,AN
*SE,SN
SE,AN
[O]
[H],AE
One of the products of arenesulfoacid hydrolysis is:
SO2
S
H2S
*H2SO4
H2SO3
Carbonate acid Н2СО3 is unstable. What products will form after its decomposition?
2СО2 +Н2
НСОН + Н2О
*СО2 + Н2О
СО + Н2О
НСООН + Н2О
Carbamide hydrolyses with formation of:
CO2 + 2N2
*CO2 + 2NH3
CO2 + H2O + N2
CO2 + NO + H2
CO + NO2 + H2
Few soluble in water urea nitrate forms at the action on carbamide:
*Nitrate acid
Nitrogen oxide (V)
Nitrogen oxide (ІІІ)
Nitrite acid
Potassium nitrate
N–acyl derivatives of urea are called:
Carbamides
Urethanes
Anhydrades
*Ureides
Halogenanhydrides
As a result of biuret reaction that is used for the detection of urea and proteins will form:
Red color complex
Green color complex
*Red-purple complex
Yellow precipitate
Blue precipitate
Barbituric acid is in the base of medical drugs – barbiturates. It belongs to:
Aliphatic ureides
*Cyclic ureides
Uretanes
Anhydrides
Carbamides
During the biuret reaction the following side product forms:
*Cyanuric acid
Cyanide acid
Potassium hexacyanoferrate (ІІ)
Potassium hexacyanoferrate (ІІІ)
Potassium cyanide
What reaction does case formation of sulfoacid?
Sulfochlorination
Oxidation of thiols
*Oxidation of alcohols
Alkanes sulfonation by oleum
Accession of hydrosulfites to alkenes
What reagents will interact with sulfoacids to confirm its acidic properties?
Cu
*NaOH
NO2
HCl
NH3
Mixture of o- and p-toluene sulfonic acids will form as a result of sulfonation. Choose the mechanism of this reaction.
AN
SN1
SN2
*SE
AE
Sodium benzolsulfonate will form as a result of interaction of:
C6H5SO2OH + Na + O2 >
C6H5SO2OH + Na2O2 >
C6H5SO2OH + Na2O >
C6H5SO2OH + Na >
*C6H5SO2OH + NaOH >
Chloroanhydrides of carbonate acids will form as a result of interaction of sulfoacids with:
CHCl3
HClO3
Cl2
*PCl5
HCl
Sodium benzolsulfonate is a primary compound for the obtaining:
*Phenols, nitrites
Amides, nitrocompounds
Alcohols, nitrocompounds
Phenols, halogenderivatives
Amides, halogenderivatives
Choose the mechanism of benzene sulfonation (formation of benzolsulfoacid):
AN
SN1
SN2
*SE
AE
Which reagent can be used in the following reaction?
*
Which is the end-product of the reaction of hydrazine with maleic dialdehyde?
*
Which is the product of pyridazine reaction with hydrochloric acid excess?
*
Select the mechanism of the following reaction and the position of quinoline it will principally occur?
*
What is the product of the following reaction?
*
What is the product of indigo Blue reduction with glucose solution?
indoxyl
pyrrole
indole
*white indigo
isatin
Choose the correct range of aromaticity decrease for furan, benzene, pyrrole, and thiophene.
*
What is the product of the following reaction?
*
Which of the following compounds are used for pyrrole acetylation?
*
The derivatives of which heterocycle are formed as the result of the following reaction (Paale-Knorr synthesis)?
2-aminothiazole
indole
thiazole
*thiophene
furane
What heterocyclic compound is formed when diammoniac salt tetrahydroxyadipic acid is heated?
thiazole
aziridne
*pyrrole
pyrazole
azetidine
Which of the following heterocycle is the structural fragment of the substance presented below (make the accordance of the substance name with the name of proper heterocyclic moiety)? Haloperidol - neuroleptic:
acridine
isoquinoline
quinoline
*piperidine
pyridine
Which of the following heterocycle is the structural fragment of the substance presented below (make the accordance of the substance name with the name of proper heterocyclic moiety)? Ftivazide (phthivazide) - antimycobacterial drug:
acridine
isoquinoline
quinoline
piperidine
*pyridine
Which of the following heterocycle is the structural fragment of the substance presented below (make the accordance of the substance name with the name of proper heterocyclic moiety)? Cordiamin - CNS stimulant:
acridine
benzo[n]pyridine
piperidine
*pyridine
benzo[n]pyrone-2
Which of the following heterocycle is the structural fragment of the substance presented below (make the accordance of the substance name with the name of proper heterocyclic moiety)? Neocoumarin - anticoagulant:
acridine
benzo[с]pyridine
piperidine
pyridine
*benzo[в]pyrone-2
Which of the following heterocycle is the structural fragment of the substance presented below (make the accordance of the substance name with the name of proper heterocyclic moiety)? Lobelin - alkaloid, analeptic:
acridine
isoquinoline
quinoline
*piperidine
α-pyrone
What is the product of the following reaction?
*
Choose the correct range of acidity decrease for the following compounds.
4, 3, 2, 1
1, 3, 2, 4
3, 1, 2, 4
*4, 2, 3, 1
1, 2, 3, 4
Which type of tautomerism is possible for indoxyl?
amino-imine
nito-aci-nitro
azole
*keto-enol
lactam-lactim
What is the product of pyrrole nitration?
*
Choose the product of the following reaction.
*
Select the mechanism of the following reaction and the position of coumarin it
will principally occur?
*
Select the mechanism of the following reaction and the position of acridine it will principally occur?
*
Which is the product of the following reaction?
*
Which is the product of the following reaction?
*
Which is the product (4) of N-phenylanthranilic acid cyclization?
*
Which is the product (2) of the following cyclization?
*
Which is the identity of the end-product (№3) in the following scheme?
*
Which reaction is Yuriev’s cycle reaction?
*
Which of the following conpounds can be starting compounds for pyrrole synthesis?
acetoacetic ester
acetylene
diazomethane
glyoxal, ammonia, formaldehyde
*diammoniac salt tetrahydroxyadipic acid
Which of the following reagents can be used for nitration of acidophobic heterocycles?
*
The derivatives of which heterocycle are formed as the result of the following reaction (Paale-Knorr synthesis)?
indole
imidazole
pyrazole
*pyrrole
furane
The derivatives of which heterocycle are formed as the result of the following reaction (Paale-Knorr synthesis)?
pyrrole
isooxazole
oxazole
thiophene
*furane
At what position of indole will electrophilic substitution reactions principally
occur?
position 5
position 4
*position 3
position 2
position 1
Which is the product of the following reaction?
*
Choose the product of the following reaction.
*
Choose the product of the following condensation.
*
Which of the following compound can be classified as azoles?
antipyrine
pyrrole
azetidine
*thiazole
aziridine
Select the mechanism of the following reaction and the position of quinoline it will principally occur?
*
Which is the identity of the intermediates (A and B) in the following scheme?
*
Which of the following reactions does lead to the barbituric acid formation?
*
At what position of pyrimidine will electrophilic substitution reactions (SE) principally occur?
*the fifth
the fourth
the third
the second
the first
Which of the following heterocycle is the structural fragment of the substance presented below (make the accordance of the substance name with the name of proper heterocyclic moiety)? Rivanol - antiseptic :
*acridine
isoquinoline
quinoline
piperidine
α-pyrone
Which reaction characterize the basic properties of purine?
*
Choose the product of pyrazine oxidation?
*
What is the product of pyrazine reduction with sodium in ethanol?
