What will be the concentration of solution of electrolyte if it's molar conductivity and conductivity are respectively 230 $$\Omega^{-1}$$ cm$$^2$$ mol$$^{-1}$$ and 0.0115 $$\Omega^{-1}$$ cm$$^{-1}$$ at 298 K?

Identify cationic complex from following.

Which property from following is NOT exhibited by interstitial compounds?

Which among the following salt solution in water shows pH greater than 7?