30-60

30-60

10th Grade

30 Qs

quiz-placeholder

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Assessment

Quiz

Chemistry

10th Grade

Easy

Created by

Arailym Sembi

Used 45+ times

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Complete the chemical reaction of HCOOH + NaOH →

НСООNa + Н2О

Na2СО3 + Н2О

НСООNa + Н2

Na2СО3 + Н2О

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The pyrolysis products of the reaction C2H5COOH + NaOH → are

С2Н6 + Na2СО3

СН3 + Na2СО3

СО2 + Н2О

С4Н10

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

C4Н10 + 2NaI

C2Н5 – СН2I + 2NaI

C2Н6 + 2NaI

C2Н4 + 2NaI

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

CH2 = CH2 + ZnBr2

СН2Br

ZnBr2

C2H6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The functional group of carboxylic acids is:

<variant>– СНО

<variant>– СООН

<variant>– С = О

<variant>– ОН

– СНО

– СООН

– С = О

– ОН

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Esters are formed as a result of the reaction:

esterification

hydration

hydrolysis

oxidation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vinylacetylene corresponds to the formula:

НС ≡ СН – СН = СН

Н2С = СН – СН = СН2

Н2С = СН2

НС ≡ СН

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