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First and second ionisation energies of ...

First and second ionisation energies of magnesium are `5.7` and `15.035eV` respectively. The amount of energy in kJ needed to convert all the atoms of magnesium into `Mg^(+2)` ions present in 12mg of magnesium vapour is `[1eV=96.5kJ " mol"^(-1)`]

A

1kJ

B

2kJ

C

4kJ

D

5kJ

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The correct Answer is:
A
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