Aldehydes and ketones. Carboxylic and dicarboxylic acids

01. Acetaldehyde is imposible to oxidise by solution

1. Cu(OH)₂

2. Ag₂O(ammonia solution)

 

3. K₂Cr₂O₇

4. Ag₂O

5. HBr

02.Reaction of formation of acetaldehyde from acetylene takes place

at the presence of

1. H₃PO₄ 2. Pt 3. Ni

4. Salts of silver

5. salts of iron

03. Reacting of disproportionation (dismutation) is typical for

1. aldehydes having alpha - hydrogen atom

2. carboxylic acids

3. derivative carboxylic acids

4. aldehydes which are not having alpha - of hydrogenous atom

5. ketones

04. Substitution of hydroxyl group of the carboxyl group into ammonia

results in formation of

1. amino acids

2. salts of carboxylic acids (carboxylates)

3. anhydrides

4. amides

5. imins

05. The greatest reactivity in reaction of nucleophilic addition

of carbonyl Carbon has

1. H - C = O 2. CH₃ - C = O 3. CH₃ - C = O 4. C₂H₅ - C = O

| | | |

H H CH₃ H

5. CH₃ - CO – C₂H₅

06. At the hydrolysis propylacetoate the following compounds form

1. С₂Н₅СООН, С₂Н₅ОН 2. СН₃СООН, С₃Н₇ОН

3. С₂Н₅СООН, С₂Н₅ОН 4. С₂Н₅ОН, С₃Н₇ОН

5. СН₃СООН, СН₃СНО

07. The Activity of the carbonyl group increases

1. in an alcaline medium

2. in acidic medium

3. neutral medium

4. at the presence of oxidant

5. at the presence of reductant

08. The reactions the most typical for carbon atom of the carbonyl group

1. Nucleophilic substitution

2. Electrophilic substitution

3. Electrophilic addition

4. Nucleophilic addition

5. elimination

09. By the partial hydrolysis of acetal the following compounds will form

1.acid and alcohol

2.alcohol and ketone

3.alcohol and aldehyde

4.hemiacetal and alcohol

5.aldehyde and acid

10. Due to CH-acidity of the carbonyl compounds which reaction is

possible

1.esterification

2.hydration

3.acetalisation

4.aldol condensation

5.polymerisation

11. Formaldehyde dispraportional reaction products are both compounds in row:

1.CH₃COOH, CH₃OH

2.HCOOH, CH₃OH

3.HCOOH, Ag₂O

4.CH₃COOH, CH₃COOH

5.HCOOH, HCOOH

12. Not typical reaction for aldehydes is reaction

1.solution Cu(OH)₂

2.ammonia solution of Ag₂O

3.solution of NaOH

4.alcohol

5.ammonia

13. Product of aldehydes reduction is:

1.primary alcohols

2.secondary alcohols

3.aldehydes

4.carboxylic acids

5.ketones

 

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14.Organic - С - С - С – compounds having

| || | this group are called:

O

1. carboxylic acids

2. ketones

3. aldehydes

4. ethers

5. alcohols

15. The product of aldol condensation is

1. aldehydes

2. aldol

3. ester

4. ether

5. Ketone15. Introducing the R - C = O group in the molecule of organic compound

is called: \

1. alkylation

2. acylation

3. decarboxylation

4. acetolisation

5. formation of anhydrides

16. At basic hydrolysis of ester two compounds form:

1. primary alcohol and acid

2. secondary alcohol and acid

3. carboxylic acid salt and alcohol

4. acid and its salt

5. sodium salt of alcohol and acid

17. The genaral formula R - C - S - R corresponds to the following class:

\\

O

1. amides

2. acid anhydrides

3. aldol

4. thioesters

5. ethers

18. Anhydrides are used in the synthesis of some compounds as:

1. catalysts

2. alkylation reagents

3. antimetabolites

4. anticoagulants

5. acylation reagent

19. O

t^o //

The equation СH₃COOH + C₂H₅OH «CH₃-C -O-C₂H₅ + H₂O is called

1. decarboxylation

2. esterification

3. salts formation

4. anhydrides formation

5. neutralization

20. Typical reaction for the carbon atom of carboxyl group is:

1. nucleophylic substitution S_N

2. electrophylic substitution S_E

3. electrophylic addition А_E

4. nucleophylic addition А_N

5. elimination

21.The biggest positive (+) charge of carbon atom of carboxyl group is in the following compound:

 

1. R -С = О

\

NH₂

2. R –С = О

\

OR

3. R –С = О

\

Cl

4. R –С = О

\

OH

5. all positive charges are equal in all compounds

22. The main product of hydrolysis of acetylchloride is:

1. CH₃-COOH

2. CH₃OH

3. Cl-CH₂-СООН

4. CH₃COOC₂H₅

5. CH₃-O–СH₃

23. Acetylcoenzyme CH₃- C -S – KoA. What role does it play in human organism

\\ tissues?

O

1.acyl group transmitter

2.methyl group transmitter

3.oxidant

4.reductant

5.hormone

24. The equation HOOC-CH₂-COOH à CO₂ + CH₃-COOH is called

1. salts formation

2. decarboxylation

3. amides formation

4. transamination

5. acids reduction

25. At the result of the following decarboxylation reaction forms

СООН Н

| |

CH₂ ® CH₂ + CO₂

| |

CООН CООН

1. Acetic acid from oxalic acid

2. Acetic acid from malic acid

3. Formic acid from oxalic acid

4. Formic acid from malonic acid

5. Acetic acid from malonic acid

26. Reaction

СООН СООН

| |

CH₂ + NH₃ ® CH₂ + H₂O

| |

C=О C=О

\ \

ОН NH₂

Corresponds to the formation of

1. amide

2. ammiacate

3. anhydride

4. thioester

5. acylhalide

27. The compound is called С₁₇Н₃₁СООН

1. salicylic acid

2. gialuronic acid

3. pectic acid

4. linolic

5. linoleic acid

28. Only saturated acids are in the row:

1. С₃Н₇-СООН, С₁₅Н₃₁СООН, С₁₇Н₃₃СООН

2. С₃Н₇-СООН, С₁₅Н₃₁СООН, С₁₇Н₃₅СООН

3. С₃Н₇-СООН, С₁₅Н₃₁СООН, С₁₇Н₃₅СООН

4. С₁₇Н₃₃СООН, С₁₇Н₃₁СООН, С₁₇Н₃₅СООН

5. С₁₇Н₃₃СООН, С₁₇Н₃₁СООН, С₁₉Н₃₅СООН

29. The equation СH₃-СOOH + NH₂-R ® СH₃-С=O + H₂O corresponds to formation

\

NH-R

1. of anhydride of acetic acid

2. of salt of acetic acid

3. acetylhalide

4. a-aminoacetic acid

5. amide of acetic acid

30. The equation СH₃-СOOH + РСl₅ ® СH₃-С=O + HСl + РOСl₃ corresponds to

\

Cl

1. formation of anhydride of acetic acid

2. salts of acetic acid

3. thioester of acetic acid

4. chloroacetic acid

5. acetylchloride