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SCHOOL LECTURER (SCHOOL EDU.) 2025 2026 question with answer

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Question 5

Question Paper for Lecturer and Coach (School Edu. Dept.) - Comp. Exam-2025 (Chemistry) Rajasthan हिन्दी MCQ

Q5.मीथेन, ग्रेफाइट तथा डाइहाइड्रोजन की 298 K पर दहन एन्थैल्पी क्रमशः −890.3 kJ mol⁻¹, −393.5 kJ mol⁻¹ तथा −285.8 kJ mol⁻¹ है। CH₄ की विरचन एन्थैल्पी होगी —