Multiple choice Arrange the following in order of decreasing Ionic mobility in protic solvent. Li+ > Na+ > K+ > Rb+ . Li+ > Na+ < K+ > Rb+ . Rb+ > K+ > Na+ > Li+ . Rb+ > K+ < Na+ > Li+ . Reveal answer Fill a bubble to check yourself C Correct answer Explanation In protic solvent higher the value of ionic potential , highly hydrate the cation is and therefore lower will be the mobilty . The ionic potential order is given by - Li+ > Na+ > K+ > Rb+ , therefore order of mobility is - Rb+ > K+ > Na+ > Li+ .