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JEE Main 202225 JuneMorning Shift
Exam
JEE Main
Year
2022
Date
25 June
Shift
Morning Shift
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2022 · 25 June · Morning Shift · Chemistry · s Block Elements

Which one of the following alkaline earth metal ions has the...

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

Options

  1. ASr2+{Sr}^{2 +}
  2. BMg2+{Mg}^{2 +}
  3. CCa2+{Ca}^{2 +}
  4. DBe2+{Be}^{2 +}

Correct answer

A. Sr2+{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 Sr2+{Sr}^{2 +} ion has the largest size, so hydrate to smaller extent and show the highest mobility.
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