First slide

Hydrogen

Question

Statement I : Both H₂and D₂ have same internuclear distance
Statement II : Enthalpy of bond dissociation is same for H₂ and D₂

Easy

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

Solution

Statement I is true and Statement is false.
Heavier isotopes have high bond dissociation energy,
B.D.E : D-D > H-H
Internuclear distance : D-D ≈ H-H
Both H₂ & D₂ have same internuclear distance.

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