Acetylene can be obtained by the reaction:

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(B) The correct option is $(B)$.Acetylene $(C_2H_2)$ is obtained by heating iodoform $(CHI_3)$ with silver powder $(Ag)$.The chemical reaction is:$2CH

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$CHI_3 + 6Ag + CHI_3 \xrightarrow{\Delta}$

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(B) The correct option is $(B)$.Acetylene $(C_2H_2)$ is obtained by heating iodoform $(CHI_3)$ with silver powder $(Ag)$.The chemical reaction is:$2CHI_3 + 6Ag \xrightarrow{\Delta} C_2H_2 + 6AgI$In this reaction,silver acts as a dehalogenating agent,removing iodine from iodoform to form silver iodide and coupling the remaining $CH$ fragments to form acetylene.

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