Redox 1 Question Preview (ID: 14561)


Redox Review. TEACHERS: click here for quick copy question ID numbers.

An oxidizing agent will always
a) lose electrons
b) increase in mass
c) be reduced
d) increase in oxidation number

In a redox reaction, the species that loses electrons
a) is oxidized
b) decreases in oxidation number
c) gains mass at the electrode
d) is called the cathode

The reaction 2 NaCl --> 2 Na + Cl2 is an example of
a) an oxidation reaction, only
b) neither an oxidation nor a reduction reaction
c) both an oxidation and reduction reaction
d) a reduction reaction, only

Oxidation-reduction reactions occur because of the competition between particles for
a) neutrons
b) positrons
c) protons
d) electrons

Mg + PbCl2 --> MgCl2 + Pb. Which statement correctly describes the oxidation and reduction that occur?
a) Mg is oxidized and Cl- is reduced
b) Mg is reduced and Pb+2 is oxidized
c) Mg is reduced and Cl- is oxidized
d) Mg is oxidized and Pb+2 is reduced

In the reactions Sn+2 + 2 Fe+3 --> Sn+4 + 2 Fe+2, the reducing agent is
a) Fe+2
b) Sn+4
c) Sn+2
d) Fe+3

As an element is oxidized, its oxidation number
a) increases as electrons are lost
b) decreases as electrons are gained
c) increases as electrons are gained
d) decreases as electrons are lost

A solution of 1.0 M Pb(NO3)2 will not react with a container made of
a) Cu
b) Zn
c) Sn
d) Fe

Pb + 2 Ag+ --> Pb+2 + 2 Ag. The chemical species being reduced is
a) Pb
b) Ag
c) Pb+2
d) Ag+

In the reactions Sn+2 + 2 Fe+3 --> Sn+4 + 2 Fe+2, the oxidizing agent is
a) Sn+2
b) Fe+2
c) Sn+4
d) Fe+3

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