MCQ
The energy barrier to free rotation about carbon carbon bond of ethane is about :
- A$30 \mathrm{~kJ} \mathrm{~mol}^{-1}$
- B$3 \mathrm{~kJ} \mathrm{~mol}^{-1}$
- ✓$3 \ \mathrm{kcal}\ \mathrm{mol}^{-1}$
- D$40 \mathrm{~kJ} \mathrm{~mol}^{-1}$
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(Given : Molar mass in $\mathrm{g} \mathrm{mol}^{-1}$ Ethyl alcohol : $46$,
water : $18$)