Question

The molecular formula of potassium nitrate is:

• A. $KN{O}_3$
• B. $KNO$
• C. $KN{O}_2$
• D. $KON$

Answer 1

The correct option is A $KN{O}_3$

Potassium nitrate has $K^{+}$ cation and $N{O}_3^{-}$ anion.

So there are only nitrate ion for each potassium ion.