Question

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 1 is true; Statement II is true; Statement
II is the correct explanation of Statement I.
(b) Statement 1 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

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