Question

# The property of halogens which is not correctly matched is:

A
F>Cl>Br>I (Ionisation energy)
B
F>Cl>Br>I (Electronegativity)
C
I>Br>Cl>F (Density)
D
F>Cl>Br>I (Electron affinity)

Solution

## The correct option is D F>Cl>Br>I (Electron affinity)$$e^-$$ affinity of $$F$$ is less than that of $$Cl$$ because of the small size and high electronegativity of $$F$$ it repels the incoming $$e^-$$ thereby decreasing its $$e^-$$ affinity whereas $$Cl$$ having bigger size than $$F$$ & can accommodate the new incoming extra $$e^-$$.Chemistry

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