Question

Уставить соответствие: А) СН3-СООС2Н5 Б) СН3-СН2-ОН В) СН3-СН2-СООН 1) спирты 2) эстеры 3) карбоновые кислоты 4) альдегиды

Answer 1

..............
a - 2
b - 1
в- 3
..............

Answer 2

The user's message is a question about the correspondence between the formulas of some organic compounds and their classes. The user wants a detailed answer. I searched the web for the user's query and found some relevant results. Here is my answer based on the information from the results:

The formulas of the organic compounds are as follows:

- A) CH3-COOC2H5: This is the formula of ethyl acetate, which is an ester. Esters are organic compounds that have the general formula R-COO-R', where R and R' are alkyl or aryl groups. Esters are formed by the reaction of carboxylic acids and alcohols. - B) CH3-CH2-OH: This is the formula of ethanol, which is an alcohol. Alcohols are organic compounds that have the general formula R-OH, where R is an alkyl or aryl group. Alcohols are formed by the hydration of alkenes or the reduction of aldehydes or ketones. - C) CH3-CH2-COOH: This is the formula of acetic acid, which is a carboxylic acid. Carboxylic acids are organic compounds that have the general formula R-COOH, where R is an alkyl or aryl group. Carboxylic acids are formed by the oxidation of alcohols or aldehydes.

The correspondence between the formulas and the classes is:

- A) CH3-COOC2H5 -> 2) esters - B) CH3-CH2-OH -> 1) alcohols - C) CH3-CH2-COOH -> 3) carboxylic acids

None of the formulas belong to the class of aldehydes. Aldehydes are organic compounds that have the general formula R-CHO, where R is an alkyl or aryl group. Aldehydes are formed by the oxidation of primary alcohols or the reduction of carboxylic acids.

I hope this answer helps you understand the topic better.