Question

Assertion . `H_(2), Li_(2) and B_(2)` each has a bond order of 1 and hence are equally stable.
Reason . Stability of molecule/molecular ion depends only on bond order.
A. If both assertion and reason are correct, and reason is the correct explanation of the assertion.
B. If both assertion and reason are correct , but reason is not the correct explanation of the assertion.
C. If assertion is correct, but reason is incorrect .
D. If both assertion and reason are incorrect.

Answer 1

Correct Answer - d
Correct A. `H_(2) , Li and B_(2)` are not equally stable .
Correct R. The stability of molecules/molecular
ions does not depend only on bond order . (It
depends upon other factors like bond length ,
number of electrons present in antibonding
molecular orbitals, etc.)