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JEE Main202225 Jun 2022Morning ShiftChemistrys Block ElementsActual

Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution?

Options

  1. ASr 2 +
  2. BMg 2 +
  3. CCa 2 +
  4. DBe 2 +

Correct answer

A. Sr 2 +

Step-by-step solution

Larger the size of cation, lesser it gets hydrated. Hence, show higher mobility in aqueous solution. Among the given species Sr 2 + ion has the largest size, so hydrate to smaller extent and show the highest mobility.

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