A) Ammonia is used as refrigerant
B) A mixture of \[Ca{{(CN)}_{2}}\] and C is known as nitrolim
C) A mixture of \[Ca{{({{H}_{2}}P{{O}_{4}})}_{2}}\] and \[CaS{{O}_{4}}\cdot 2{{H}_{2}}O\] is known as superphosphate of lime
D) Hydrolysis of \[NC{{l}_{3}}\] gives \[N{{H}_{3}}\] and \[HOCl\]
Correct Answer: B
Solution :
The mixture of calcium cyanamide \[Ca{{(CN)}_{2}}\] and Carbon (C) is known as nitrolim. It is used as a fertilizer and can be prepared by passing nitrogen on\[Ca{{C}_{2}}\]. \[Ca{{C}_{2}}+{{N}_{2}}\xrightarrow[1100{}^\circ C]{{}}\underset{\text{nitrolim}}{\mathop{Ca{{(CN)}_{2}}}}\,+C\]
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