ANS:A - 3-4

In natural gas, the C/H ratio (by weight) typically varies in the range of 8-10. Natural gas primarily consists of methane (CH4), which contains one carbon atom and four hydrogen atoms. Methane is the primary component of natural gas, accounting for a significant portion of its composition. The carbon-to-hydrogen ratio in methane is 1:4, leading to a relatively consistent C/H ratio of approximately 1:4 or 8:32 (simplified to 1:4) by weight. While natural gas may contain trace amounts of other hydrocarbons and impurities, methane is the dominant component, and its C/H ratio largely determines the overall composition of natural gas. Therefore, the typical range for the C/H ratio in natural gas is approximately 8-10 by weight.