What attractive forces must be overcome when CsI is dissolvedin

liquid HF?

The attractive forces must be overcome are:

Ion - ion interaction Dipole - Dipole Hydrogen Bonding

Explanation:

For the compound to dissolve the attractive forces existing between atoms of the compound must be reduced

CsI is ionic compound and its molecules are held together by ionic (electrostatic) force. These force must be weakened for its dissolution

Forces in HF:

1. Hydrogen Bonding : In HF strong intermolecular Hydrogen Bonding exist between the electronegative F and Hydrogen

2. Dipole - dipole : HF is polar. So it is a permanent dipole and has dipole diople interaction