
Diagnostic quizz "Redox reaction"
Authored by JAKKOBUS SINAGA
Chemistry
10th - 11th Grade
NGSS covered
Used 40+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
An oxidizing agent will always...
be reduced
increase in oxidation number
increase in mass
lose electrons
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a redox reaction, the species that loses electrons...
is called the cathode
is oxidized
decreases in oxidation number
gains mass at the electrode
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The reaction 2 NaCl --> 2 Na + Cl2 is an example of:
both an oxidation and reduction reaction
neither an oxidation nor a reduction reaction
a reduction reaction, only
an oxidation reaction, only
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Oxidation-reduction reactions occur because of the competition between particles for...
protons
neutrons
electrons
positrons
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mg + PbCl2 --> MgCl2 + Pb. Which statement correctly describes the oxidation and reduction that occur?
Mg is oxidized and Cl- is reduced
Mg is oxidized and Pb+2 is reduced
Mg is reduced and Cl- is oxidized
Mg is reduced and Pb+2 is oxidized
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In the reactions Sn+2 + 2 Fe+3 --> Sn+4 + 2 Fe+2, the reducing agent is...
Fe+3
Sn+4
Sn+2
Fe+2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As an element is oxidized, its oxidation number...
increases as electrons are gained
decreases as electrons are gained
decreases as electrons are lost
increases as electrons are lost
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
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