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Ionisation Energy

Which of the ...

Question

Which of the following transitions involves maximum amount of energy?

M^{2 +} (g) \to M^{3 +} (g) + e^{-}

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M (g) \to M^{+} (g) + e^{-}

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M^{+} (g) \to M^{2 +} (g) + e^{-}

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M^{-} (g) \to M^{+} (g) + 2 e^{-}

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Solution

The correct option is B $M^{2 +} (g) \to M^{3 +} (g) + e^{-}$
The ionization energy of a multivalent atom increases with the consecutive removal of the electron. This is due to an increase in effective nuclear charge on the valence electron that makes it difficult to ionize a cation.

Hence,option C is correct.

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Similar questions

M (s) \to M (g) M (s) \to M^{2 +} (g) + 2 e^{-}

M (g) \to M^{+} (g) + e^{-} M^{+} (g) \to M^{2 +} (g) + e^{-}

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M (s) \to M (g) . . . . . (a)

M (s) \to M^{2 +} (g) + 2 e^{-} . . . . . (b)

M (g) \to M^{+} (g) + e^{-} . . . . . (c)

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