The percentage of nitrogen present in ammonium sulphate is – (1) 27% (2) 25% (3) 30.5% (4) 18%

The percentage of nitrogen present in ammonium sulphate is – (1) 27% (2) 25% (3) 30.5% (4) 18%
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(1) 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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