https://hi.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-2/x37589313f9a4c197:carbon-and-its-compounds/e/allotropes-of-carbon 2026-04-08T08:46:38.570038857Z कार्बन के अपररूप (Allotropes of Carbon) आइए कार्बन के अपररूपों को बेहतर ढंग से समझने के लिए कुछ प्रश्न हल करें। Aakash Bagga exercise https://hi.khanacademy.org/science/ncert-class-6-science/xc0e2f5a229de7337:nature-s-treasures/xc0e2f5a229de7337:fossil-fuels/e/coal 2026-04-08T08:46:38.570038857Z कोयला (Coal) आइए कुछ प्रश्नों के उत्तर देते हैं। Shankar R exercise https://hi.khanacademy.org/science/ncert-class-6-science/xc0e2f5a229de7337:nature-s-treasures/xc0e2f5a229de7337:fossil-fuels/e/petroluem 2026-04-08T08:46:38.570038857Z पेट्रोलियम (Petroluem) आइए कुछ प्रश्नों के उत्तर देते हैं। Shankar R exercise https://hi.khanacademy.org/science/ncert-class-6-science/xc0e2f5a229de7337:nature-s-treasures/xc0e2f5a229de7337:fossil-fuels/e/natural-gas 2026-04-11T08:42:00.550058053Z प्राकृतिक गैस (Natural gas) आइए कुछ प्रश्नों के उत्तर देते हैं। Shankar R exercise https://hi.khanacademy.org/science/kn-class-8-sciencenew/x62ed4e3748459c99:combustion-and-flame/x62ed4e3748459c99:fuel-and-their-efficiency/v/what-is-fuel 2025-06-22T05:46:34.906655626Z ईधन क्या है? (What is Fuel ?) What is a fuel? Why do we use different fuels for cooking, vehicles, and industries? In this video, we explore the meaning of fuel, what makes a fuel “good,” and why no fuel is truly ideal. Learn how fuels are classified into solid, liquid, and gaseous types, and understand the key features of an ideal fuel like cost-effectiveness, safety, and energy output. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw ईधन क्या है? (What is Fuel ?) What is a fuel? Why do we use different fuels for cooking, vehicles, and industries? In this video, we explore the meaning of fuel, what makes a fuel “good,” and why no fuel is truly ideal. Learn how fuels are classified into solid, liquid, and gaseous types, and understand the key features of an ideal fuel like cost-effectiveness, safety, and energy output. https://cdn.kastatic.org/ka-youtube-converted/VOIyEL4qH-w.mp4/VOIyEL4qH-w.mp4 345 कार्बन एवं उसके यौगिक (Carbon and its compounds) https://hi.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-2/x37589313f9a4c197:carbon-and-its-compounds/e/fuels 2026-04-08T08:46:38.570038857Z ईंधन (Fuels) आइए विभिन्न प्रकार के ईंधनों को बेहतर ढंग से समझने के लिए कुछ प्रश्न हल करें। Aakash Bagga exercise