Assertion :Solid sodium chloride does not allow electricity to pass through. Reason: Solid $N a C l$ has a crystal structure, in which sodium and chloride ions are fixed at a particular position and unable to move.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Solid NaCl has a crystal structure, in which sodium and chloride ions are fixed at a particular position and unable to move so it does not conduct any electricity in the solid state but it conducts in the solution state.

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λ_{N a^{+}}^{\circ} + λ_{C l^{-}}^{\circ}

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ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

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