Calcium carbids reacts with nitrogen to form a black mixture of carbon and cyanamide. This mixture, known as nitrolime, is used as:
A
a fertilizer
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B
a dye
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C
a paint
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D
an explosive
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Solution
The correct option is A a fertilizer
Calcium cyanamide is commercially known as nitrolime. This is an inorganic compound bearing the formula of CaCN2. It is used as a fertilizer in agriculture.