Question

Nitrolim fertilizer contains:
A. $Ca{(OH)_2}$
B. $CaC{N_2}$
C. $Ca{(CN)_2}$
D. $C{a_3}{N_2}$

Answer 1

When nitrogen is passed over calcium carbide at a suitable high temperature, we get a mixture called Nitrolium which is a nitrogenous fertilizer, which is a mixture of calcium cyanamide and carbon.

Complete step by step answer:
Nitrolim is the name of fertilizer which is a chemical mix of $CaC{N_2} + C$. It reacts with ${H_2}O$ to form ammonia. It is vital for flora.
$CaC{N_2} + 2{H_2}O to CaC{O_3} + N{H_3}$

So, the correct answer is Option B.

Additional information
Inorganic nitrogen composts come in a wide range of structures, for example, ammonium nitrate, potassium nitrate, calcium nitrate and urea. These composts contain elevated levels of nitrogen, one of the most fundamental supplements for plant development. In any case, these inorganic manures will in general build the pH of the dirt upon application, expanding the odds of consumption and harm to seedlings.
Fritz Rothe, an associate of Candid and Caro, prevailing in 1898 in beating issues with the utilization of calcium carbide.
Calcium cyanamide is set up from calcium carbide. The carbide powder is warmed at around 1,100 °C in an electric heater into which nitrogen is passed for a few hours. The item is cooled to surrounding temperatures and any unreacted carbide is filtered out circumspectly with water.

Note: Calcium cyanamide is the inorganic compound with the recipe $CaC{N_2}$. It is the calcium salt of the cyanamide anion. This substance is utilized as fertilizer and is monetarily known as nitro-lime.