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प्रश्न
IE1 and IE2 of Mg are 179 and 348 kcal mol−1 respectively. The energy required for the reaction \[\ce{Mg -> Mg^2+ + 2e^-}\] is
विकल्प
+ 169 kcal mol−1
− 169 kcal mol−1
+ 527 kcal mol−1
− 527 kcal mol−1
उत्तर
+ 527 kcal mol−1
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