JEE Mains · Chemistry · STD 12 - p -Block elements - ll
Within each pair of elements of \(F\;and \;Cl\) , \(S\;and \;Se\), and \(Li\;and \;Na\), respectively, the elements that release more energy upon an electron gain are
- A \(F, Se\) and \(Na\)
- B \(F, S\) and \(Li\)
- C \(Cl, S\) and \(Li\)
- D \(Cl, Se\) and \(Na\)
Answer & Solution
Correct Answer
(C) \(Cl, S\) and \(Li\)
Step-by-step Solution
Detailed explanation
(i) Electron affinity of second period \(p-\)block element is less than third period \(p-\)block element due to small size of second period \(p-\)block element. \(E.A.\) order : \(F < Cl\) (ii) Down the group electron affinity decreases due to size increases. \(EA.\) order :…
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