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Thermodynamics question

2018 · Q104
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Thermodynamics question

2018 · Q104

NEETChemistryThermodynamicsMCQ+4 / −1
The bond dissociation energies of X2 , Y2 and XY are in the ratio of 1 : 0.5 : 1. Δ\DeltaΔH for the formation of XY is –200 kJ mol–1. The bond dissociation energy of X2 will be
  1. A
    800 kJ mol–1
  2. B
    200 kJ mol–1
  3. C
    400 kJ mol–1
  4. D
    100 kJ mol–1
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