For electron affinity of halogens, which of the following is correct?

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For electron affinity of halogens, which of the following is correct?

Options

(a) Br > F
(b) F > Cl
(c) Br > Cl
(d) F > I

Correct Answer:

F > I

Explanation:

The order of electron affinity is
Cl > F > Br > I
Usually this affinity decreases on moving down in a group with increase in size. But ∑A of elmts of III period > II period, because elmts of II period have small size and greater elctrn density so, incoming elctrns suffer a repulsive force.

Related Questions:

1. The hydrogen ion concentration in mol/dm, in a 0.2 M solution of a weak acid
2. The orientation of an atomic orbital is governed by
3. The stability of +1 oxidation state increases in the sequence:
4. In alkaline hydrolysis of a tertiary alkyl halides by aqueous alkali,
5. Fac-mer isomerism is associated with which one of the following complexes?

Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)

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