Metallic conductors and semiconductors are heated separately. What are the changes with respect to conductivity?

Identify True $(T)$ or False $(F)$ for the following statements :
$(i)$ As concentration of solution is more,conductivity is less.
$(ii)$ As concentration of solution is less,conductivity is more.
$(iii)$ As temperature is less,conductivity is more.

The conductivity of a strong electrolyte:

How does the conductivity of a strong electrolyte change upon dilution?

Which of the following statements is incorrect with respect to metallic or electronic conductivity?

The resistance of a conductivity cell containing $0.001 \ M \ KCl$ solution at $298 \ K$ is $1500 \ \Omega$. What is the cell constant if the conductivity of $0.001 \ M \ KCl$ solution at $298 \ K$ is $0.146 \times 10^{-3} \ S \ cm^{-1}$?