Question

Select the correct statement(s).
a) Electron affinity of $F$ is less than that of $Cl$.
b) Number of lone pairs at central chlorine atom of $Cl{F}_3$ is 2.
c) Iodine absorbs radiation of violet colour and appears in yellow colour.
d) $F_2$ oxidizes all other ionic halides to halogens.

• A. Only c
• B. a, c and d
• C. a, b and d
• D. All are correct

Answer 1

Answer: (C)

Iodine is violet in colour. So, it absorbs yellow colour and appears violet.
$F_2$ is the strongest oxidising agent and oxidises other halides to halogens.
Electron affinity of $F$ is less than that of $Cl$ due to the small size of $F$ and repulsion of electrons in its small size.