Urea is prepared by the chemical reactions of ________.

Ammonium sulphate and calcium chloride

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Ammonia and carbon dioxide

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Chlorine and water

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Acetamide and ethyl alcohol

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Solution

The correct option is B Ammonia and carbon dioxide
Urea is obtained by several processes. One of methods include a reaction of ammonia, carbon monoxide and sulfur in methanol. Its melting point is 134 ºC and in higher temperatures urea decomposes.

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Similar questions

Write a balanced chemical equation for each of the following :

1. Carbon disulphide burns in air to give carbon dioxide and sulphur dioxide.

2. Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas.

3. Methyl alcohol burns in air to form carbon dioxide and water.

4. Liquid hydrogen peroxide decomposes to give water and oxygen gas.

5. Aluminium hydroxide reacts with sulphuric acid to give ammonium sulphate and water.

6. Aluminium sulphate solution reacts with sodium hydroxide to form a precipitate of aluminium hydroxide.

Give a chemical test to distinguish between the following :

(a) Ammonium chloride and sodium chloride,

(b) Ferric salt and ferrous salt,

N H_{3}

C O_{2}

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