The increasing order of ionic radii of alkali metals isLi+ < Na+ < K+ < Rb+ < Cs+.In aqueous solution which of the following moves the slowest?
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a
Li+
b
Na+
c
K+
d
Cs+
answer is A.
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Detailed Solution
Li+ is heavily hydrated in water because of being very small in size. Hence, hydrated, Li+ produced moves the slowest in aqueous solution alkali among all metal cations.