Question

Incorrect order of properties given in parenthesis are

• A. $Cl>S>F>O$ (Electron affinity)
• B. $O>F>B>C$ $\left(I E_{2}\right)$
• C. $N>O>P>S \, \, \left(I E_{1}\right)$
• D. $O>C>B>N$ (Electron affinity)

Answer 1

Answer: (A)

The second element in each group in the periodic table has higher electron affinity than the other respective group elements and in a period from left to right electron affinity increases.
Correct order is:
$Cl>F>S>O$