Reaksi Redoks

Reaksi Redoks

10th Grade

10 Qs

quiz-placeholder

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Reaksi Redoks

Reaksi Redoks

Assessment

Quiz

Chemistry

10th Grade

Practice Problem

Hard

Created by

Suchory Putri

Used 44+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Reaksi oksidasi ditunjukkan oleh....

Cu2+ + 2e →  Cu

Na+ + e →  Na

I2 + 2e → 2I

Fe →   Fe2+ + 2e

Sn4+ + 2e → Sn2+

2.

MULTIPLE CHOICE QUESTION

2 mins • 3 pts

Perhatikan reaksi redoks di bawah ini:

Cl2 + 2KOH → KCl + KClO + H2O

Bilangan oksidasi klorin berubah dari…. menjadi ….

-1 menjadi +1 dan 0

+1 menjadi -1 dan 0

0 menjadi -4 dan -2

-2 menjadi 0 dan +1

0 menjadi -1 dan +1

3.

MULTIPLE CHOICE QUESTION

2 mins • 2 pts

Bilangan oksidasi S terendah terdapat dalam senyawa ….

H2SO4

SO2

K2SO3

Na2S2O3

Al2S3

4.

MULTIPLE CHOICE QUESTION

3 mins • 3 pts

Besi sebagai oksidator

Air sebagai oksidator

Oksigen mengoksidasi besi

Besi mengalami reduksi

Besi mereduksi air

5.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Di antara reaksi berikut ini, yang tidak tergolong reaksi redoks adalah...

S + O2 → SO2

MnO2 + 4H+ + 2Cl → Mn2+ + Cl2 + 2H2O

2S2O32− + I2 → S4O62- + 2I

Al2O3 + 6H+ → 2Al3+ + 3H2O

Cr2O72− + 14H+ + 6Fe2+ → 2Cr3+ + 6Fe3+ + 7H2O

6.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Perhatikan kelima reaksi di bawah ini:

(A). 2SO2(g) + O2(g) → 2SO3(g)

(B). 2FeCl3(aq) + H2S(s) → 2FeCl2(aq) + 2HCl(aq) + S(s)

(C).  3I2(s) + 6KOH(aq) → 5KI(aq) + KIO3(aq) + 3H2O(l)

(D).  SO2(g) + 2H2S(g) → 3S(s) + 2H2O(l)

(E). 2CuSO4(aq) 4KI(aq) → 2CuI(aq) + I2(g) + 2K2SO4(aq)

Di antara reaksi di atas, yang tergolong reaksi disproporsionasi adalah ….

(A)

(B)

(C)

(D)

(E)

7.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Reaksi autoredoks dibagi menjadi reaksi disproporsionasi dan reaksi konproporsionasi. Di antara reaksi berikut ini, yang termasuk reaksi konproporsionasi adalah....

Cr2O72− + 14H+ + 6Fe2+ → 2Cr3+ + 6Fe3+ + 7H2O

MnO2 + 4H+ + 2Cl→ Mn2+ + Cl2 + 2H2O

2S2O32− + I2 → S4O62- + 2I

S + O2 → SO2

Al2O3 + 6H+ → 2Al3+ + 3H2O

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