The correct order of conductivity of ions in | vedclass

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Question

(B) The conductivity of ions in an aqueous solution depends on their hydrated ionic size.As the size of the gaseous ion decreases,the extent of hydrat

Vedclass · Accepted Answer

$Cs^{+} > Rb^{+} > K^{+} > Na^{+}$

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(B) The conductivity of ions in an aqueous solution depends on their hydrated ionic size.As the size of the gaseous ion decreases,the extent of hydration increases,which leads to a larger hydrated ionic radius.Larger hydrated ions experience greater resistance (viscous drag) while moving through the solvent,resulting in lower ionic mobility and lower conductivity.The order of gaseous ionic size is: $Cs^{+} > Rb^{+} > K^{+} > Na^{+}$.Consequently,the order of hydrated ionic size is: $Cs^{+} Therefore,the order of ionic conductivity in water is: $Cs^{+} > Rb^{+} > K^{+} > Na^{+}$.

Column $-I$	Column $-II$
$(a)$ Borax	$(p)$ $NaCl$
$(b)$ Carnallite	$(q)$ $KCl$
$(c)$ Rock salt	$(r)$ $KCl.MgCl_2.6H_2O$
$(d)$ Silvine	$(s)$ $Na_2B_4O_7.10H_2O$

The correct order of conductivity of ions in water is

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Match column $-I$ with column $-II$ :

Column $-I$ Column $-II$

$(a)$ Borax $(p)$ $NaCl$

$(b)$ Carnallite $(q)$ $KCl$

$(c)$ Rock salt $(r)$ $KCl.MgCl_2.6H_2O$

$(d)$ Silvine $(s)$ $Na_2B_4O_7.10H_2O$

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