Oxidation Numbers: Question Preview (ID: 14558)


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What is the oxidation number of Chlorine in HClO4?
a) +1
b) +5
c) +3
d) +7

The number of nitrogen in N2 is
a) +1
b) 0
c) +3
d) -3

What is the oxidation number of Pt in K2PtCl6?
a) -2
b) +2
c) -4
d) +4

What is the oxidation number of sulfur in H2SO4?
a) 0
b) -2
c) +6
d) +4

What is the oxidation number of nitrogen in (NO3)-1
a) +1
b) +3
c) +5
d) -5

The oxidation number of nitrogen in N2O is
a) +1
b) +2
c) -1
d) -2

The oxidation number of manganese in KMnO4 is
a) +1
b) +7
c) +3
d) +4

Oxygen has an oxidation number of -2 in
a) O2
b) NO2
c) Na2O2
d) OF2

What is the sum of the oxidation numbers in CO2?
a) 0
b) -2
c) -4
d) +4

What is the oxidation number of Cr in the dichromate ion (Cr2O7)-2
a) +1
b) +3
c) +5
d) +6

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