Assertion :The extent of dissociation is different for different electrolytes. Reason: The extent of dissociation is dependent on nature of electrolyte and independent of the concentration of electrolyte.

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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Assertion is incorrect but Reason is correct.

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Solution

The correct option is C Assertion is correct but Reason is incorrect.
Dissociation is also known as ionisation and is dependent on the nature of electrolyte (weak or strong) and concentration of the electrolyte. With an increase in the concentration of electrolyte degree of dissociation decreases.

Hence, option $C$ is correct.

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