What is the name of the molecule below

A) 2-pentene

Explanation:

We count from side where we encounter double bond closest so that's going to be from left to the 2nd carbon. Total carbons are 5.

Thus pent- for prefix of 5 carbons and -ene as suffix for double bond.

2- for locant of double bond.

Thus, 2-pentene

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.