Q. Consider the following substances:

I. Ethanol
II. Nitroglycerine
III. Urea

Coal gasification technology can be used in the production of how many of them?

(a) Only one
(b) Only two
(c) All the three
(d) None

5. निम्नलिखित पदार्थों पर विचार कीजिए:

I. एथेनॉल
II. नाइट्रोग्लिसरीन
III. यूरिया

उपर्युक्त में से कितनों के उत्पादन में कोयला गैसीकरण प्रौद्योगिकी प्रयुक्त की जा सकती है?

(a) केवल एक
(b) केवल दो
(c) सभी तीन
(d) कोई नहीं

Answer: (b) Only two

Explanation:

• Coal gasification technology can be used in the production of Ethanol and Urea but not Nitroglycerine.
• Coal gasification technology can be used for ethanol production. Coal gasification converts coal into a mixture of gases called syngas (a mixture of carbon monoxide and hydrogen), which can then be used as a feedstock for producing ethanol through a process called fermentation.
• Syngas can be used to produce ammonia too. This ammonia is subsequently reacted with carbon dioxide to produce urea
• Coal gasification technology is not used for the production of nitroglycerin. Nitroglycerin is produced through a chemical process involving nitrating glycerol with nitric acid and sulfuric acid.

Source: Ministry of Coal and Indian Express