Match List-I (Fuel Gases) with List-II (Major Constituents) and select the correct answer using the codes given below the Lists

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Q: 124 (IAS/2004)
Match List-I (Fuel Gases) with List-II (Major Constituents) and select the correct answer using the codes given below the Lists
(Fuel Gases)(Major Constituents)
A. CNG1. Carbonmonoxide, Hydrogen
B. Coal gas2. Butane, Propane
C. LPG3. Methane, Ethane
D. Water gas4. Hydrogen, Methane, Carbonmonoxide

question_subject: 

Science

question_exam: 

IAS

stats: 

0,84,81,21,84,27,33

keywords: 

{'fuel gases': [0, 0, 1, 0], 'major constituents': [0, 0, 1, 0]}

The correct answer to this question is Option 2. Let`s look through each pairing to understand why:

A. CNG (Compressed Natural Gas) is primarily made up of Methane and Ethane (pairing 3).

B. Coal gas primarily consists of Hydrogen, Methane and Carbon Monoxide (pairing 4).

C. LPG (Liquefied Petroleum Gas) is a mixture of Butane and Propane (pairing 2).

D. Water gas is composed of Carbon Monoxide and Hydrogen (pairing 1).

Therefore, the correct answer is Option 2: A-3, B-4, C-2, D-1, which correctly pairs the fuel gases with their respective constituents. Other options incorrectly match the gases with their components, hence they are not the right choices.