Question

Assertion: Sodium chloride $(NaCl)$ is a stable ionic solid.
Reason: $NaCl$ has high lattice enthalpy

• A. If both assertion and reason are true and reason is the correct explanation of assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false

Answer 1

Answer: (A)

Ionic solid:- Ionic Solids are solids composed of oppositely charged ions. They consist of $+$ charged cations and - charged anions
Lattice enthalpy:- Lattice enthalpy is a measure of the strength of the forces between the ions in an ionic solid. The greater the lattice enthalpy, the stronger the forces. Those forces are only completely broken when the ions are present as gaseous ions