Compare the ionic size of:
(a) ${F e}^{2 +} a n d {F e}^{3 +}$
(b) ${C u}^{3 +} a n d {C u}^{2 +}$
(c) $H^{+}, H^{-} a n d H$

{F e}^{3 +} < {F e}^{2 +}

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{C u}^{+ 3} < {C u}^{2 +}

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H^{+} < H

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All true

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Solution

The correct option is D All true
(a) ${F e}^{3 +} < {F e}^{2 +}$
(b) ${C u}^{+ 3} < {C u}^{2 +}$
(c) $H^{+} < H < H^{-}$

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