NEETChemistry-Thermodynamics
NEET Chemistry Bond Energy MCQ Question
Type: MCQ-numerical-Hard-Class 11
The bond dissociation energies of X₂, Y₂ and XY are in the ratio of 1 : 0.5 : 1. ΔH for the formation of XY is –200 kJ mol⁻¹. The bond dissociation energy of X₂ will be
A
200 kJ mol⁻¹
B
100 kJ mol⁻¹
C
400 kJ mol⁻¹
D
800 kJ mol⁻¹
Correct Answer
Option C
Detailed Explanation
Using the given ratio and the enthalpy change for the formation of XY, the bond dissociation energy of X₂ can be calculated.
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