Sodium forms an ion with a charge of_
a. 1+
b. 1-
c. 2+
d.0

a. +1.

Explanation:

Sodium atom has 1 valency electron which is easily lost to form Na+.

The charge is therefore +1.

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

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