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B
CaCN2 and graphite
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C
Ca(CN)2 and graphite
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D
CaCN2+N2
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Solution
The correct option is BCaCN2 and graphite
CaC2+N2⟶CaCN2+C
When nitrogen is passed over calcium carbide at a suitable high temperature, we get a mixture of CaCN2+Graphite(C) known as nitrolim which is a nitrogenous fertiliser."