Statement I: H2 molecule is more stable than HeH molecule.Statement II : H2 molecule has lower bond order than HeH molecule.
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a
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
Statement I and Statement II are false.
answer is B.
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Detailed Solution
H2-(σ1s)2B·O=2-02=1HeH (a Hypothetical molecule)Number of electrons in HeH = 3HeH-σ1s2σ1s*1B.O=2-12=0.5B.O in H2 > HeHBond order ∝ Bond energy ∝StabilityI is true II is false.