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Redox Reactions

Authored by Yeo Shyh Yuan Don undefined

Chemistry

10th Grade

Used 20+ times

Redox Reactions
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11 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

H+ (aq) + OH- (aq) → H2O (l) is a redox reaction.

True

False

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2H+ (aq) + MgCO3 (s) → Mg2+ (aq) + CO2 (g) + H2O (l) is a redox reaction.

True

False

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2H+ (aq) + Mg (s) → Mg2+ (aq) + H2 (g) is a redox reaction.

True

False

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ag+ (aq) + Cl -(aq) →AgCl (s) is a redox reaction.

True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The oxidation state of which element is decreased?

Mg + ZnF2 → Zn + MgF2

Mg

Zn

F

ZnF2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In this reaction K (s) + Na+ (aq) → Na (s) + K+ (aq),

K is oxidised

K is reduced

Na+ is oxidised

Na is reduced

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In this reaction C + O2 → CO2,

C gained electrons

C lost electrons

O in CO2 gained electrons

O in O2 lost electrons

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