Question

What attractive forces must be overcome when CsI is dissolvedin liquid HF?

Answer 1

Answer:

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