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NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The electron affinity of chlorine is 3.7eV.13.7 \mathrm{eV} .1 gram of chlorine is completely converted to Cl−\mathrm{Cl}^{-}ion in a gaseous state. (1eV=23.06 kcal mol−1)\left(1 \mathrm{eV}=23.06 \mathrm{~kcal} \mathrm{~mol}^{-1}\right).
Energy released in the process is
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Correct option: D
2.4 kcal2.4 \mathrm{~kcal}
Option A (2.4 kcal) is correct because it calculates the energy released when 1 gram of chlorine is converted to chloride ions using the given electron affinity and conversion factor.

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