U5.2 Oxidation state
Authored by Taoyong Qu
Chemistry
10th Grade - University
Used 3+ times
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45 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Oxidation is the _________ of electrons.
loss
gain
sharing
transfer
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reduction is the ___________ of electrons.
loss
gain
sharing
transfer
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following represents oxidation?
C → CH4
Fe3+ → Fe2+
Cl2 → 2Cl-
Zn → ZnO
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which statement is true:
Mg → Mg2+ + 2e–
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the oxidation number of O in CO2?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The sum of all oxidation numbers in a neutral compound is ___.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is oxidation number of Mn in MnO2 ?
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