The alkaline earth metal ion that has least electrical conductivity in aqueous solutions is:

B a^{+ +}

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C a^{+ +}

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B e^{+ +}

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C s^{+ +}

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Solution

The correct option is C $B e^{+ +}$
The degree of hydration is maximum for $B e^{2 +}$ ion. Hence, it has least ionic mobility and least electrical conductivity among the given ions.

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Similar questions

L i^{+} < N a^{+} < K^{+} < R b^{+} < C s^{+}

E^{⊖}

M^{2 +} (a q) + 2 e^{-} \to M (s)

M = C a, S r

B a

Comment on each of the following observations:

(a) The mobilities of the alkali metal ions in aqueous solution are Li⁺ < Na⁺ < K⁺< Rb⁺ < Cs⁺

(b) Lithium is the only alkali metal to form a nitride directly.

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