NEET Chemistry Ionic Bond MCQ Question
Which of the following statements about ionic bonds and lattice enthalpy is correct?
Lattice enthalpy indicates the energy required to separate gaseous ions from an ionic solid.
Ionic compounds are primarily stabilized by achieving an octet of electrons in their gaseous state.
The lattice enthalpy of NaCl is lower than that of KCl due to weaker ionic interactions.
Lattice enthalpy does not significantly influence the stability of ionic compounds.
Correct Answer
Detailed Explanation
Lattice enthalpy is defined as the energy required to completely separate one mole of a solid ionic compound into gaseous constituent ions, as stated in the NCERT context. Option B is incorrect because stability is not solely based on achieving an octet in gaseous state. Option C is incorrect as NaCl has a higher lattice enthalpy than KCl due to stronger ionic bonds. Option D is incorrect because lattice enthalpy plays a crucial role in the stability of ionic compounds.
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