Calcium Cyanamide on hydrolysis gives ammonia

Discussion Forum : P-block Group 15 - Pnictogens

Question -

Calcium Cyanamide on hydrolysis gives ammonia – True or False?

Options:

A . True

B . False

C . Heating air

D . Heating

N H_{4} N O_{2}

carefully

Answer: Option A
:
A
Cyanamide is an important organic chemical, which is used in agriculture and in the production of various pharmaceuticals and other organic compounds. It can be thought of as a nitrile group attached to an amine group.
Calcium Cyanamide is CaNCN, an inorganic compound that is extensively used as a fertilizer. It is synthesized by the famous Frank-Caro process (also known as the cyanamide process) where Calcium Carbide is heated with

N_{2}

gas in a reactor at 1273 K. The reaction is exothermic:

C a C_{2}

N_{2}

\to

CaNCN + C
( Calcium (Nitrogen) ( Calcium (Carbon)
Carbide) Cyanamide)

C a C N_{2}

4 H_{2} O

\to

C a (O H)_{2}

C O_{2}

2 N H_{3}

(Calcium hydroxide) (Ammonia)

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