RRB Technician Grade 3 previous year question
Which condition is required for methane to undergo a substitution reaction with chlorine?
Asked in RRB Technician Grade 3 (10 Mar 2026 Shift 1) · Science
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Correct answer: (D) Sunlight
The substitution reaction of methane with chlorine (forming chloromethane and HCl) requires the presence of sunlight, which provides the energy needed to initiate the free-radical chain reaction.
हिंदी में प्रश्न
मेथेन की क्लोरीन के साथ प्रतिस्थापन अभिक्रिया के लिए कौन-सा प्रतिबंध आवश्यक है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) अम्लीय माध्यम
मेथेन की क्लोरीन के साथ प्रतिस्थापन अभिक्रिया (क्लोरोमेथेन और HCl बनाना) के लिए सूर्यप्रकाश की उपस्थिति आवश्यक है, जो मुक्त-मूलक श्रृंखला अभिक्रिया शुरू करने हेतु ऊर्जा प्रदान करता है।
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