How many moles of ethene are required to prepare $6.0 \mathrm{~g}$ ethane by hydrogenation process?

How many moles of ethene are required to prepare $6.0 \mathrm{~g}$ ethane by hydrogenation process?
  1. $0 \cdot 2$ mole
  2. $0 \cdot 1$ mole
  3. $1 \cdot 0$ mole
  4. $4 \cdot 0$ mole

Solution

$\mathrm{CH}_{2}=\mathrm{CH}_{2}+\mathrm{H}_{2} \rightarrow \mathrm{CH}_{3}-\mathrm{CH}_{3}$ 30g requires 1 mole $6 \mathrm{~g}$ requires $\mathrm{x}$ mole $x=6 / 30=0.2$ mole

Asked in: MHT CET 2020 (15 Oct Shift 1)

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