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(D) The aqueous solutions of lithium salts are poor conductors of electricity compared to those of other alkali metals because of the higher degree of

Vedclass · Accepted Answer

higher degree of hydration of $Li^{+}$ ions

Vedclass · Answer

(D) The aqueous solutions of lithium salts are poor conductors of electricity compared to those of other alkali metals because of the higher degree of hydration of $Li^{+}$ ions.Due to its small size,the $Li^{+}$ ion has a very high charge density,which causes it to be heavily hydrated in aqueous solutions.This large hydration shell increases the effective size of the ion,which significantly decreases its ionic mobility.Since electrical conductivity in aqueous solutions depends on the mobility of ions,the reduced mobility leads to lower conductivity.Hence,option $D$ is correct.

The aqueous solutions of lithium salts are poor conductors of electricity compared to other alkali metals because of:

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