30-60

Complete the chemical reaction of HCOOH + NaOH →

• НСООNa + Н₂О

• Na₂СО₃ + Н₂О

• НСООNa + Н₂

• Na₂СО₃ + Н₂О

The pyrolysis products of the reaction C2H5COOH + NaOH → are

• С₂Н₆ + Na₂СО₃

• СН₃ + Na₂СО₃

• СО₂ + Н₂О

• С₄Н₁₀

The products of the Wurz-Shorygin reaction are: 2С2Н5I + 2Na →

• C₄Н₁₀ + 2NaI

• C₂Н₅ – СН₂I + 2NaI

• C₂Н₆ + 2NaI

• C₂Н₄ + 2NaI

Determine the products of the following reaction: CH2Br - CH2Br + Zn →

• CH₂ = CH₂ + ZnBr₂

• СН₂Br

• ZnBr₂

• C₂H₆

The functional group of carboxylic acids is:

<variant>– СНО

<variant>– СООН

<variant>– С = О

<variant>– ОН

• – СНО

• – СООН

• – С = О

• – ОН

Esters are formed as a result of the reaction:

• esterification

• hydration

• hydrolysis

• oxidation

Vinylacetylene corresponds to the formula:

• НС ≡ СН – СН = СН

• Н₂С = СН – СН = СН₂

• Н₂С = СН₂

• НС ≡ СН

Which products are formed by the following reaction: CH3-CH = CH2 + Br2 →

 

• СН₃ – СН Вr – СН₂Вr

• СН₃ – СН₃ + НВr

• СН₃ – СН₂ - СН₃ + НВ

• СН₄ + НВr + СО₂

Determine the reaction products C2H5COOH + PCl5 →

• СН₃СОСl + НСl + РОСl₃

• НСООСl + POCl₃

• С₂Н₅ + НСl + POCl₃

• НСl + POCl₃

> The reaction of propionic acid with ethanol results in:

• СН₃СН₂СООС₂Н₅ + Н₂О

• СН₃ – С(СН₃)₃ – СООН

• СН₃СН₂СОС₂Н₅ + Н₂О

• С₂Н₅ОН