Urea is manufactured from:

ammonia

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nitric acid

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nitrogen

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both

A

and

B

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Solution

The correct option is A ammonia
he basic process, developed in 1922, is also called the Bosch–Meiser urea process after its discoverers. Various commercial urea processes are characterized by the conditions under which urea forms and the way that unconverted reactants are further processed. The process consists of two main equilibrium reactions, with incomplete conversion of the reactants. The first is carbamate formation: the fast exothermic reaction of liquid ammonia with gaseous carbon dioxide at high temperature and pressure to form ammonium carbamate ( $H_{2} N - C O O - N H_{4}$ ).

$2 N H_{3} + C O_{2} ⇌ H_{2} N - C O O - N H_{4}$

The second is urea conversion: the slower endothermic decomposition of ammonium carbamate into urea and water:

$H_{2} N - C O O - N H_{4} ⇌ (N H_{2}) 2 C O + H_{2} O$

Suggest Corrections

Similar questions

2 N H_{3} + C O_{2} ⇌ X

X

(H_{2} N C O N H_{2})

C O_{2} (g)

C O_{2}

236 k g

(C_{n} H_{2 n + 2})

C O_{2}

999.6 k g

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