Asked: Uttarakhand P.C.S. (Mains) 2006medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
निम्न में से किसका उपयोग यूरिया उर्वरक के उत्पादन में किया जाता है?
Which of the following is used in the production of urea fertilizer?
SELECT CORRECT OPTION:
A
कार्बन डाइऑक्साइड
Carbon dioxide
Correct
B
सल्फर डाइऑक्साइड
Sulphur dioxide
C
क्लोरीन
Chlorine
D
नाइट्रिक अम्ल
Nitric acid
Official Solution & Explanation:
Correct Answer: Option A(कार्बन डाइऑक्साइड)
यूरिया के औद्योगिक उत्पादन में द्रव अमोनिया ($NH_3$) की कार्बन डाइऑक्साइड ($CO_2$) के साथ उच्च दाब ($130-150\text{ atm}$) और ताप ($180-200^\circ C$) पर अभिक्रिया कराई जाती है: $2NH_3 + CO_2 \rightarrow NH_2COONH_4 \rightarrow NH_2CONH_2 + H_2O$।
Urea is manufactured commercially by reacting liquid ammonia ($NH_3$) with carbon dioxide ($CO_2$) under high pressure and temperature to yield ammonium carbamate, which is dehydrated to urea.
Subject: General Science•Topic: Fertilizers•Subtopic: Fertilizers
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