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QAIPMT-2008-Ch-2190: NEET 2008 Chemistry - Class 11 AIPMT-2008-Ch-2190 Solution: Which one of the following arrangements does not give the…
Which one of the following arrangements does not give the correct picture of the trends indicated against it?
Multiple Choice Options
- A : Bond dissociation energy
- B : Electronegativity
- C : Oxidizing power
- D : Electron gain enthalpy
Step-by-Step Verified Solution
For Diatomic molecules (X 2 ) of halogens the bond dissociation energy decreases in the order:
Cl 2 > Br 2 > F 2 > I 2
The oxidising power, electronegativity and relativity decrease in the order:
F 2 > Cl 2 > Br 2 > I 2
Order of Electron gain enthalpy of halogens
Cl 2 > F 2 > Br 2 > I 2
The low value of electron gain enthalpy of fluorine is probably due to small size of fluorine atom.