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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

1 Hard

1 of 1

Application +4 | -1

The energy required to convert all atoms present in

1.2 \mathrm{~g}

magnesium to

{Mg}^{2+}

ions if

\mathrm{IE}

, and

\mathrm{IE}_2

of magnesium are

120 \mathrm{~kJ} \mathrm{~mol}^{-1}

and

240 \mathrm{~kJ} \mathrm{~mol}^{-1}

respectively

View answer and explanation

Correct option: A

18 \mathrm{~kJ}

Option A (

18 \mathrm{~kJ}

) is correct because the total ionization energy for converting 0.05 moles of Mg to Mg²⁺ is calculated by summing IE₁ and IE₂ and then multiplying by the number of moles.

JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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