Chem 132: Which of the following is not the correct chemical formula for the compound named?

Question:

Which of the following is not the correct chemical formula for the compound named?

Select one:
a.
nickel(II) peroxide Ni2O
b.
ammonium chromate (NH4)2CrO4
c.
beryllium oxide BeO
d.
calcium sulfate CaSO4
e.
hydrocyanic acid HCN

Answer

a. nickel(II) peroxide Ni2O