What is the number of moles of nascent hydrogen required to prepare 1 mole of methane from iodomethane?

What is the number of moles of nascent hydrogen required to prepare 1 mole of methane from iodomethane?
  1. 4
  2. 3
  3. 2
  4. 1

Solution

$\begin{aligned} & \mathrm{CH}_3-\mathrm{I}+2[\mathrm{H}] \stackrel{\mathrm{Zn}, \mathrm{HCl}}{\longrightarrow} \mathrm{CH}_4+\mathrm{HI} \\ & \text { Methyl Nascent Methane } \\ & \text { iodide } \\ & \end{aligned}$ Hence, the number of moles of nascent hydrogen required to prepare 1 mole of methane from iodomethane is 2 moles.

Asked in: MHT CET 2023 (13 May Shift 1)

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