Question

15. Реакция гидратации характерна для а. этина б. бензола в. декана г. циклопентана16.Установите соответствие между формулой и названием вещества І. C2H6 1) этанол ІІ. C17H35COOH 2) этан ІІІ. C2H5OH 3) этилен ІV. C2H4 4) стеариновая кислотаа. І. 2) ІІ. 1) ІІІ. 4) ІV. 3) б. І. 2) ІІ. 1) ІІІ. 3) ІV. 4) в. І. 2) ІІ. 1) ІІІ. 4) ІV. 3) г. І. 2) ІІ. 4) ІІІ.1) ІV. 3)

Answer 1

Ответ :

15 – а).
16 – г).
Решение :
15. Реакция гидратации из списка характерна только для этина (HC≡CH) – $\sf C_2H_2 + H_2O \xrightarrow{HgSO_4}CH_3CHO$.
Бензол (C₆H₆), декан (C₁₀H₂₂), циклопентан (C₅H₁₀) в реакцию с водой не вступают.
16. Ⅰ. С₂H₆ – 2) этан.
Ⅱ. C₁₇H₃₅COOH – 4) стеариновая кислота.
Ⅲ. C₂H₅OH – 1) этанол.
Ⅳ. C₂H₄ – 3) этилен.
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Answer 2

Reaction of Hydration

The reaction of hydration refers to the addition of water to a compound. Let's examine the hydration reactions of ethyne, benzene, decane, and cyclopentane.

a. Ethyne (C2H2): - The reaction of ethyne with water, in the presence of a catalyst, forms ethanal (acetaldehyde) as the product [[1]].

b. Benzene (C6H6): - Benzene does not undergo direct hydration under normal conditions. However, it can be converted to phenol (C6H5OH) through a series of reactions, including oxidation and hydrolysis [[2]].

c. Decane (C10H22): - Decane does not readily undergo hydration reactions.

d. Cyclopentane (C5H10): - Cyclopentane can undergo hydration in the presence of an acid catalyst to form cyclopentanol (C5H10O) [[3]].

Matching Formulas with Substance Names

Let's match the given formulas with their corresponding substance names.

I. C2H6: - This formula corresponds to ethane [[4]].

II. C17H35COOH: - This formula corresponds to stearic acid [[5]].

III. C2H5OH: - This formula corresponds to ethanol [[6]].

IV. C2H4: - This formula corresponds to ethylene [[7]].

Matching the formulas with the substance names:

a. I. 2), II. 1), III. 4), IV. 3) b. I. 2), II. 1), III. 3), IV. 4) c. I. 2), II. 1), III. 4), IV. 3) d. I. 2), II. 4), III. 1), IV. 3) e. I. 2), II. 1), III. 4), IV. 3)

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