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Reaksi reduksi dan reaksi oksidasi X Smstr 2

Authored by Toni Suhartono

Chemistry

10th Grade

Used 543+ times

Reaksi reduksi dan reaksi oksidasi X Smstr 2
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Untuk setara reaksi redoks 2 KMnO4 + 5H2C2O4 +

3 H2SO4 → K2SO4 + 2 MnSO4 +10 CO2 + 8H2O terjadi perpindahan elektron ; e dilepas reduktor sama dengan e diterima oksidator sebanyak …

1

2

3

4

5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Di antara reaksi-reaksi berikut merupakan reaksi koproporsionasi ialah ...

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

2 NaOH (aq) + H2SO4 (aq) → Na2SO4 (aq) + 2 H2O (ℓ).

FeCl3 (aq) + 3 KOH (aq) → Fe(OH)3 (s) + 3 KCl (aq).

CH3COOH (aq) + NaOH (aq) → CH3COONa (aq) + H2O(ℓ).

Mg(OH)2 (aq) + HNO3 (aq) → Mg(NO3)2 (aq) + 2H2O (ℓ).

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Diketahui reaksi Cl2 + SO2 + 2H2O → 2HCl + H2SO4, maka pereaksi sebagai reduktor, yaitu ...

H2SO4

HCl

H2O

SO2

Cl2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Rumus kimis nitrogen (IV) oksida adalah …

N2O5

N2O3

NO2

N2O

NO

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Fe2O3 adalah rumus kimis senyawa …

besi oksigen

besi (I) oksida

besi (II) oksida

besi (III) oksida

besi oksida

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Rumus kimis kalium sulfit ialah …

K2S4O6

K2S2O3

K2SO4

K2SO3

K2S

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Reaksi di bawah ini adalah reaksi autoredoks; disproporsionasi, yakni ...

CH4 + 2 O2 → CO2 + 2 H2O

Zn + 2 HCl → ZnCl2 + H2

SO2 + H2S → H2O + 3 S

Cl2 + 2 KOH → KCl + KClO + H2O

Na2S2O3 + I2 → 2 NaI + Na2S4O6

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