NEETChemistryChemical Bonding and Molecular Structure
Assertion (A): Higher lattice enthalpy leads to greater stability of ionic compounds. Reason (R) : Lattice enthalpy is a direct measure of the electrostatic forces of repulsion among the constituent ions in an ionic solid. The correct answer is
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct and (R) is not the correct explanation of (A)
- C(A) is correct, but (R) is not correct
- D(A) is not correct, but (R) is correct
Correct answer
C. (A) is correct, but (R) is not correct
Step-by-step solution
Assertion (A): Higher lattice enthalpy leads to greater stability of ionic compounds. This statement is correct. Lattice enthalpy is the energy released when gaseous ions combine to form one mole of a solid ionic compound. A more negative (higher in magnitude) lattice enthalpy signifies a stronger attraction between ions and thus a more stable ionic compound. Reason (R): Lattice enthalpy is a direct measure of the electrostatic forces of repulsion among the constituent ions in an ionic solid. This statement is inco