Q.

The percentage of nitrogen present in ammonium sulphate is –

A. 27%
B. 25%
C. 30.5%
D. 18%
Answer» A. 27%
Explanation: Ammonium sulfate, (NH4)4SO4 contains 21% nitrogen as ammonium cations, and 24% sulfur as sulfate anions. It is an inorganic salt which is most commonly used as a soil fertilizer.
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