Lattice energies of BeF2, MgF2, CaF2 and BaF2 are –2906, –2610, –2459 and –2367 KJ/mol respectively. Hydration energies of Be2+, Mg2+, Ca2+, Ba2+ and F– are –2494, –1921, –1577, – 1305 and –457 KJ mol

Question

Lattice energies of BeF2, MgF2, CaF2 and BaF2 are –2906, –2610, –2459 and –2367 KJ/mol respectively. Hydration energies of Be2+, Mg2+, Ca2+, Ba2+ and F– are –2494, –1921, –1577, – 1305 and –457 KJ mol–1 respectively. Which of the fluorides is not soluble in water?

(A) BeF2
(B) MgF2
(C) CaF2
(D) BaF2

Prashant Kotian · Accepted Answer

Correct answer:

Practice 22,000+ questions like this