A) \[N{{H}_{2}}CON{{H}_{2}}\]
B) \[N{{H}_{4}}N{{O}_{3}}\]
C) \[CaNCN\]
D) \[KN{{O}_{3}}\]
Correct Answer: B
Solution :
Calcium cyanamide is the slow acting nitrogenous fertilizer as it decompose very slowly. \[CaNCN+2{{H}_{2}}O\to CaC{{O}_{3}}+\underset{\text{Urea}}{\mathop{N{{H}_{2}}CON{{H}_{2}}}}\,\] \[N{{H}_{2}}CON{{H}_{2}}+{{H}_{2}}O\to C{{O}_{2}}+2N{{H}_{3}}\] \[N{{H}_{3}}\underset{\text{bacteria}}{\mathop{\xrightarrow{\text{Nitrifying }}}}\,\text{Soluble}\ \text{nitrates}\to \text{Plants}\]
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