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The main constituent of Gobar gas is
Explanation
Gobar gas, commonly known as biogas in rural India, is produced through the anaerobic decomposition of organic matter such as cattle dung (gobar) [2]. The primary and most significant constituent of this gas is methane (CH4), which typically accounts for 50% to 75% of its total volume. Other components include carbon dioxide (25-50%) and trace amounts of hydrogen sulfide and moisture. Methane is a highly efficient fuel widely used for cooking, lighting, and electricity generation due to its high thermal efficiency compared to traditional fuels like dung cakes or charcoal [3]. While natural gas also contains small amounts of ethane, propane, and butane, these are not the primary constituents of biogas produced from animal waste [3]. Therefore, methane is the main combustible component that gives gobar gas its value as a renewable energy source.
Sources
- [1] NCERT. (2022). Contemporary India II: Textbook in Geography for Class X (Revised ed.). NCERT. > Chapter 5: Print Culture and the Modern World > Biogas > p. 117
- [2] Indian Economy, Nitin Singhania .(ed 2nd 2021-22) > Chapter 15: Infrastructure > Biogas > p. 452
- [3] Science , class X (NCERT 2025 ed.) > Chapter 4: Carbon and its Compounds > 4.1 BONDING IN CARBON – THE COVALENT BOND > p. 60