Question

Which of the following is the main component of natural gas?

• A. Methane
• B. Ethane
• C. Propane
• D. Butane

Hint:

Methane (CH₄) is the primary component of natural gas, typically comprising around 70–90% of the total gas.

Answer 1

The Correct Option is A

Natural gas is primarily composed of hydrocarbons. The composition can vary, but the primary component is methane (CHâ‚„). 
Step 1: Understanding Natural Gas Composition. 
Natural gas is made up of various hydrocarbons, with methane being the predominant one. Methane typically constitutes about 70 - 90 % of natural gas by volume. Other gases such as ethane, propane, butane, and trace amounts of heavier hydrocarbons and gases like carbon dioxide and nitrogen are also present. 
Step 2: Examining the Options.
(a) Methane: This is the main component of natural gas, typically the highest in concentration.
(b) Ethane: While ethane is present in natural gas, it is not the primary component.
(c) Propane: This is another component of natural gas but is present in smaller quantities.
(d) Butane: Like propane, butane is present in trace amounts. 
Step 3: Conclusion. 
Methane is by far the most abundant component in natural gas, making option (a) the correct choice. Thus, the correct answer is (a) Methane.