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Chemistry-Ionic Bond

NEET Chemistry Ionic Bond MCQ Question

Type: MCQ-numerical-Easy-Class 11

What is the lattice enthalpy of NaCl, given that it requires this amount of energy to completely separate one mole of solid NaCl into its gaseous ions?

A

788 kJ mol⁻¹

B

500 kJ mol⁻¹

C

1000 kJ mol⁻¹

D

250 kJ mol⁻¹

Correct Answer

Option A

Detailed Explanation

The lattice enthalpy of NaCl is 788 kJ mol⁻¹, which is the energy required to separate one mole of solid NaCl into one mole of Na⁺ (g) and one mole of Cl⁻ (g), as stated in the NCERT context.

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