Calcium cynamide is a/an

Ammonium fertilisers

Amide fertilisers

Answer

Nitrate fertilisers

Both B and C

Answer: Option B

Solution

Answer: Option B

Solution:

Calcium cynamide is a/an Amide fertilisers.
Calcium cyanamide is an inorganic compound with the formula CaCN₂. It is the calcium salt of the cyanamide (CN^2-₂) anion. This chemical is used as fertilizer and is commercially known as nitrolime.
Calcium cyanamide is used as a fertilizer, pesticide, and in the manufacture of other chemicals. It is irritating to the eyes, skin, and respiratory tract in humans. Acute (short-term) inhalation exposure may cause gastritis, rhinitis, pharyngitis, laryngitis and tracheobronchitis.