Question

: $F-F$ bond in $F _{2}$ molecule is strong. : $F$ atom is small in size.

• A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
• B. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
• C. If Assertion is true but Reason is false.
• D. If both Assertion and Reason are false.

Answer 1

Answer: (D)

If both Assertion and Reason are false.

Answer 2

$F - F$ bond in $F _{2}$ is weaker than $Cl - Cl$ bond in $Cl _{2}$ due to the lower bond energy of $F _{2}$, despite shorter bond length is due to repulsion between lone pairs on two $F$ atoms.