Convert:

(a) Methane into chloroform.

(b) Sodium acetate into methane

(c) Methyl iodide into ethane.

(d) Methane to methyl alcohol

(a) Methane into chloroform

$\underset{\text{ methane} }{\text{CH}$4} + \text{Cl}2 \underset{\Delta}{\xrightarrow{\text{diffused sunlight}}} \underset{\text{monochloromethane}}{\text{CH}_3\text{Cl}} + \text{HCl}

$\underset{\text{monochloromethane}}{\text{CH}$3\text{Cl}} + \underset{\text{[excess]}}{\text{Cl}2} \longrightarrow \underset{\text{dichloromethane}}{\text{CH}2\text{Cl}2} + \text{HCl}

$\underset{\text{dichloromethane}}{\text{CH}$2\text{Cl}2} + \text{Cl}2 \longrightarrow \underset{\text{trichloromethane or chloroform}}{\text{CHCl}3}+ \text{HCl}

(b) Sodium acetate into methane

$\underset{\text{sodium acetate}}{\text{CH}$3\text{COONa}} + \underset{\text{sodalime}}{\text{NaOH}} \underset{\Delta}{\xrightarrow{\text{CaO}}} \underset{\text{methane}}{\text{CH}4} + \text{Na}2\text{CO}3

(c) Methyl iodide into ethane

$\underset{\text{methyl iodide}}{2\text{CH}$3\text{I}} + 2\text{Na} \xrightarrow{\text{dry ether}} \underset{\text{ethane}}{\text{C}2\text{H}_6} ↑ + 2\text{NaI}

(d) Methane to methyl alcohol

$\underset{\text{ methane}}{2\text{CH}$4} + \text{O}2 \xrightarrow[120 \text{ atm.}]{\text{475 K Cu tube}} \underset{\text{methyl alcohol}}{2\text{CH}_3\text{OH}}