Which of the following value of $\Delta_{f} \mathrm{H}^{\circ}$ represent that the product is least stable ?

Which of the following value of $\Delta_{f} \mathrm{H}^{\circ}$ represent that the product is least stable ?
  1. $-94.0 \mathrm{kcal} \mathrm{mol}^{-1}$
  2. $-231.6 \mathrm{kcal} \mathrm{mol}^{-1}$
  3. $+21.4 \mathrm{kcal} \mathrm{mol}^{-1}$
  4. $+64.8 \mathrm{kcal} \mathrm{mol}^{-1}$

Solution

As $\Delta_{f} H$ increases stability decreases.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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