Which of the ions in the table below would have the largest value of enthalpy of hydration?
Ionic radius in nm Charge of ion

Options

A. `{:("Ionic radii in nm","Charge of ion"),(0.0065, +2):}`
B. `{:("Ionic radii in nm","Charge of ion"),(0.095, +1):}`
C. `{:("Ionic radii in nm","Charge of ion"),(0.135, +2):}`
D. `{:("Ionic radii in nm","Charge of ion"),(0.169, +1):}`

Answer

A

Explanation

Smaller the size of the ions and greater the charge on the ion, greater is the enthalpy of hydration.