Oxidation and Reduction
Quiz
•
Science
•
11th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
Lisa Thompson
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a reaction, copper is reduced; its number of electrons has:
Increased
Decreased
Remained Constant
Varies Randomly
Tags
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the reaction Zn + H2O --> ZnO2 + H2
which element, if any, is oxidized?
Zinc
Hydrogen
Oxygen
None
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3
Iron
Fluorine
Oxygen
Tags
NGSS.HS-PS1-7
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
________________ is the gain of oxygen atoms.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
________________ is the loss of oxygen atoms.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is this an oxidation or reduction reaction?
water → hydrogen + oxygen
Oxidation
Reduction
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which element has been reduced?
iron
lithium
oxide
iron oxide
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