Q.
Correct order of mobility in fused state
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a
Li+ > K+ > Na+ > Rb+
b
Li+ > Na+ > K+ > Rb+
c
Rb+ > K+ > Na+ > Li+
d
Rb+ > Na+ >K+ > Li+
answer is B.
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Detailed Solution
In fused state, ionic size of Li+ < Na+ < K+ < Rb+ < Cs+ ∴mobility of Li+ > Na+ > K+ > Rb+ > Cs+ In aqueous solution : Hydration enthalpy α1size of ion
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