Solubility Water of Group 2

Which is more soluble in water between...

• BaF2
• BaSO4

The very ........... fluoride ions have ............... hydration enthalpy compared to the ................ , sulphate ion.

• small, higher, large
• large, higher, small
• large, lower, small
• small, lower, large

The very ........... sulphate ions have ............... hydration enthalpy compared to the ................ , fluoride ion.

• large, lower, small
• small, higher, large
• large, higher, small
• small, lower, large

Which is more soluble in water between...

• MgSO4
• BaSO4

Which is less soluble in water between...

• BaSO4
• MgSO4

Which is less soluble in water between...

• BaSO4
• BaF2

Why the salt of group 2 elements are generally less soluble than the salt of group 1 elements?

• Group 2 salts have higher lattice energies due to their small ionic radius and higher charge.
• The lower lattice energy, the more difficult it is for the salt to dissociate into its ions.
• The higher lattice energy, the less difficult it is for the salt to dissociate into its ions.
• Group 1 salts have lower lattice energies due to their large ionic radius and higher charge.

Why the salt of group 2 elements are generally less soluble than the salt of group 1 elements?

• The higher lattice energy, the more difficult it is for the salt to dissociate into its ions.
• Group 2 salts have lower lattice energies due to their large ionic radius and higher charge.
• The higher lattice energy, the less difficult it is for the salt to dissociate into its ions.
• Group 1 salts have lower lattice energies due to their large ionic radius and higher charge.

When going down group, the solubility of the group 2 sulphates...

• decreases
• increases

When going down group, the solubility of the group 2 ClO4-...

• decreases
• increases