CaO and NaCl have the same crystal structure and approximately the same radii. IfU is the lattice energy of NaCI. the approximate lattice energy of CaO is …………….

CaO and NaCl have the same crystal structure and approximately the sam

1.	CaO and NaCl have the same crystal structure and approximately the same radii. IfU is the lattice energy of NaCI. the approximate lattice energy of CaO is …………….
Answer» `U` `2U` `U//2` `4U` SOLUTION :`4U`