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Assertion: The second ionisation energie...

Assertion: The second ionisation energies of V, Cr and Mn are in the order `VltCrltMn`.
Reason: Ionisation energies show a regular increase along a period with increase of atomic number.

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Correction A. The correct order of `IE_(2)` is
`._(23)V lt ._(24)Crgt._(25)Mn`
Correct R. Cr after losing one electron has `3d^(5)` stable configuration from which removal of second electron is difficult.
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