Which of the Following Formula-Name Pairs Is/are Correct

question 15

Multiple Choice

Which of the following formula-name pairs is/are correct?
i.GaCl₂,gallium chloride (gallium,Z = 31)
ii.HS,hydrosulfuric acid
iii.Pb(NO₂) ₂,lead(II) nitrate
iv.NaClO₂,sodium chlorate
v.K₃PO₄,potassium phosphate

• A)all are correct
• B)i, iii, and v
• C)v only
• D)i, ii, iii, and iv
• E)none is correct

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