Question

Select the correct option for the below statements:
Statement I: $F$- atom has a less negative electron affinity than Cl-atom.
Statement II: Additional electrons are repelled more effectively by $3p$-electrons in $Cl$-atom than by $2p$-electrons in F-atom.

• A. Statement I is true; Statement II is true; Statement II is the correct explanation of Statement I.
• B. Statement I is true; Statement II is true; Statement II is not the correct explanation of Statement I.
• C. Statement I is true; Statement II is false.
• D. Statement I is false; Statement II is true.

Answer 1

The correct option is C Statement I is true; Statement II is false.

$F$ atom has slightly lower affinity for the electron than chlorine. It is due to the reason that additional electrons are repelled more effectively by $2p$-electrons in $F$ than by $3p$-electrons in $Cl$-atom.