Look at the single replacement reaction below. Use the rules to assign oxidation numbers to each element in the reaction. Choose the 4 statements below that are TRUE of the reaction.

Question

Cl2(g) + 2NaBr(aq) ---> 2NaCl(aq) + Br2(aq)

a
The oxidation number of Chlorine decreases.
b
The oxidation number of Chlorine increases.
c
The oxidation number of Bromine decreases.
d
The oxidation number of Bromine increases.
e
Bromine undergoes oxidation.
f
Bromine undergoes reduction.
g
Chlorine undergoes reduction.
h
Chlorine undergoes oxidation.

Answer 1

The oxidation number of Chlorine decreases. (True)
The oxidation number of Bromine increases. (True)
Bromine undergoes oxidation. (True)
Chlorine undergoes reduction. (True)