Марганец

Марганец

5th - 12th Grade

13 Qs

quiz-placeholder

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Марганец

Марганец

Assessment

Quiz

Science

5th - 12th Grade

Hard

Created by

Ольга Рябова

Used 1+ times

FREE Resource

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

В каком соединении марганец имеет степень окисления +7?

KMnO4

MnO2

Mn

K2MnO4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

В каком соединении марганец имеет степень окисления 0?

Mn

MnO

MnSO4

KMnO4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Какое вещество является окислителем в данной реакции?

KMnO4 + H2O2 + H2SO4 -> K2SO4 + MnSO4 + O2 + H2O

KMnO4

H2O2

H2SO4

H2O

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Определить среду раствора в реакции

KMnO4 + Na2SO3 + H2O

pH < 7

pH =7

pH > 7

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Определить среду раствора в реакции

KMnO4 + H2O2 + H2SO4

pH < 7

pH = 7

pH > 7

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Определить среду раствора в реакции

KMnO4 + K2S + NaOH

pH < 7

pH = 7

pH > 7

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Какой цвет имеет KMnO4?

Малиновый

Зеленый

Желтый

Белый

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