Question

Which of the following salt is not used as a fertilizer?

• A. $(N{H}_4{)}_{2}S{O}_4$
• B. $KCl$
• C. $MgS{O}_4$
• D. $NaN{O}_3$

Answer 1

The correct option is C

$MgS{O}_4$

Ammonium sulphate $\left(\right(N{H}_4{)}_{2}S{O}_4)$, Potassium chloride $\left(KCl\right)$ & Sodium nitrate $\left(NaN{O}_3\right)$ are salts used in fertilizers. Magnesium sulphate $\left(MgS{O}_4\right)$ is present in several medicines and is not used as a fertilizer.