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Redox Reactions

Authored by Morgan Cook

Chemistry

10th - 12th Grade

NGSS covered

Used 548+ times

Redox Reactions
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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

What element is being Oxidized?

N
H
O
S

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Is calcium oxidized or reduced in the following reaction? 
2 CaO--> 2 Ca + O2

Oxidized
Reduced

Tags

NGSS.HS-PS1-2

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following half reactions correctly represents a reduction half reaction?

Fe →Fe2+ + 2e-
Pb4+ + 2e- →Pb2+
2O-2 →O2 + 4e-
Fe + 3e- →Fe3+

Tags

NGSS.HS-PS1-2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the oxidation number of chlorine in HClO?

0

-1

+1

+5

Tags

NGSS.HS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reduction is the ___________ of electrons.

loss

gain

sharing

transfer

Tags

NGSS.HS-PS1-2

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the oxidation number of iodine in KIO3?

0

-1

+5

+1

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Determine the oxidation number of chromate in CrO42-.

+6

0

+2

+3

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