Question:medium

The gas which is used to make chloroform is

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Remember the names of the first few alkanes: Methane (1 carbon), Ethane (2 carbons), Propane (3 carbons). Chloroform has one carbon atom, which is a strong clue that it's derived from methane.
Updated On: Mar 26, 2026
  • Cyanogen
  • Radon
  • Propane
  • Methane
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The Correct Option is D

Solution and Explanation

Step 1: Understanding the Concept:
The inquiry concerns the chemical compound employed as a precursor in the industrial manufacturing of chloroform (CHCl\(_3\)).
Step 2: Detailed Explanation:
Industrial production of chloroform is achieved through the chlorination of methane. This process entails heating a mixture of methane and chlorine gas, initiating a free-radical substitution reaction. The reaction yields a mixture of chlorinated methanes, including chloromethane, dichloromethane, chloroform, and carbon tetrachloride, which are subsequently separated via distillation. The fundamental starting material is Methane (CH\(_4\)).
\[ \text{CH}_4 + \text{Cl}_2 \rightarrow \text{CH}_3\text{Cl} + \text{HCl} \]\[ \text{CH}_3\text{Cl} + \text{Cl}_2 \rightarrow \text{CH}_2\text{Cl}_2 + \text{HCl} \]\[ \text{CH}_2\text{Cl}_2 + \text{Cl}_2 \rightarrow \text{CHCl}_3 \text{ (Chloroform)} + \text{HCl} \]Step 3: Final Answer:
Methane is the gaseous precursor utilized in chloroform synthesis.
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