between H^+ and OH^- which has a greater speed
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Ionic mobility of an ion is an extent of movement of ion in solution.
Ionic mobility of ion depend on their size.
Size of hydrogen ion is smallest among all three ions, therefore it has maximum mobility.
Whereas, size of Cupric ion is largest among the given ions, so it will have minimum mobility.
The correct order of speed of the following ions will be:
H^{+} > OH ^{-} > Cu^{+2}H +>OH−>Cu+2
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