Statement I : Both H2 and D2 have same internuclear distanceStatement II : Enthalpy of bond dissociation is same for H2 and D2
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a
Both Statement I and Statement II are true
b
Statement I is true and Statement II is false
c
Statement I is false and Statement II is true
d
Both Statement I and Statement II are false
answer is B.
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Detailed Solution
Statement I is true and Statement is false.Heavier isotopes have high bond dissociation energy,B.D.E : D-D > H-HInternuclear distance : D-D ≈ H-HBoth H2 & D2 have same internuclear distance.