The electrical conductivity in aqueous solutions is high for:

M g^{+ +}

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N a^{+}

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C a^{+ +}

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K^{+}

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Solution

The correct option is D $K^{+}$
The potassium ion( $K^{+}$ ) has high electrical conductivity in aqueous solution. This is because it has lowest charge density. Hence it is hydrated to lowest extent.

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Similar questions

Q. Which of the following cation is not hydrolyzed in aqueous solution?
(i)

M g^{2 +}

(ii)

C a^{2 +}

(iii)

N a^{+}

(iv)

K^{+}

Q. Which of the following cations is not hydrolyzed in aqueous solution ?
(i)

M g^{2 +}

(ii)

C a^{2 +}

(iii)

N a^{+}

(iv)

K^{+}

Q. The highest electrical conductivity of the following aqueous solutions is of:

Question 61
Explain the following:

(a) Reactivity of $Al$ decreases if it is dipped in ${HNO}_{3}$ .
(b) Carbon cannot reduce the oxides of $Na$ or $Mg$ .
(c) $NaCl$ is not a conductor of electricity in the solid state whereas it does conducts electricity in aqueous solution as well as in molten state.
(d) Iron articles are galvanised.
(e) Metals like $Na, K, Ca$ and $Mg$ are never found in their free state in nature.

Q. Consider the given statements and choose the correct option.

Statement-I: Metal chlorides are usually ionic solids and conduct electricity in aqueous solutions and molten state.

Statement-II: Reactive metals such as Na, K and Ca react with hydrogen and produce respective metal hydrides.

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The electrical conductivity in aqueous solutions is high for:

The correct option is D K+The potassium ion(K+) has high electrical conductivity in aqueous solution. This is because it has lowest charge density. Hence it is hydrated to lowest extent.

The correct option is D $K^{+}$
The potassium ion( $K^{+}$ ) has high electrical conductivity in aqueous solution. This is because it has lowest charge density. Hence it is hydrated to lowest extent.