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  4. Assertion: The conductivity of an electrolyte is very low as compared to a metal at room temperature. Reason: The number density of free ions in electrolyte is much smaller as compared to number density of free electrons in metals. Further, ions drift much more slowly, being heavier.

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Q. Assertion : The conductivity of an electrolyte is very low as compared to a metal at room temperature.
Reason : The number density of free ions in electrolyte is much smaller as compared to number density of free electrons in metals. Further, ions drift much more slowly, being heavier.

AIIMSAIIMS 2015Current Electricity

Solution:

The conductivity of an electrolyte is very low as compared to a metal at room temperature because the number density of free ions in an electrolyte is much smaller as compared to number of free electrons in metals. Further, ions drift slowly due to their heavier mass.