redoks

redoks

10th Grade

10 Qs

quiz-placeholder

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Assessment

Quiz

Chemistry

10th Grade

Practice Problem

Medium

Created by

isna nasution

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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Perhatikan pernyataan berikut

1) reaksi pelepasan hidrogen

2) reaksi penurunan bilangan oksidasi

3)reaksi pembebasan elektron

4)reaksi pengikatan elektron

Dari pernyataan diatas yang merupakan konsep dari reaksi reduksi adalah ....

(2), (4)

(1), (2), (3)

(1), (3)

(3) (4)

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

CuO + H2 → Cu + H2O

Yang bertindak sebagai Oksidator adalah …

COOH

CuO

H2O

Cu

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

MnO2 + 4HCl → MnCl2 + 2H2O + Cl2

Yang bertindak sebagai Reduktor adalah . . .

HCl

MnCl2

MnO2

2H2O

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Bilangan oksidasi atom Cl tertinggi di antara senyawa berikut adalah …

CaO2

KClO

KCl

KClO3

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Reaksi berikut termasuk reaksi oksidasi jika dilihat dari kemampuan menerima atau melepaskan oksigen adalah

2Na2O → 4 Na + O2

2Na2O2 →2 Na2O + O2

2 BaO2 →2 BaO + O2

2K + O2 →2K2O

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Bilangan Oksidasi Fe dalam Fe2O3 adalah...

+2

+3

+1

0

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Bilangan oksidasi N dalam HNO3

+3

+2

+5

-2

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