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JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
Electron gain enthalpy with negative sign of fluorine is less than that of chlorine due to
- A High ionization enthalpy of fluorine
- B Smaller size of chlorine atom
- C Smaller size of fluorine atom
- D Bigger size of \(2p\) orbital of fluorine
Answer & Solution
Correct Answer
(C) Smaller size of fluorine atom
Step-by-step Solution
Detailed explanation
The electron gain enthalpy order for halogens is \(Cl >F>Br>I\) Due to small size of fluorine the extra electron to be added feels more electron-electron repulsion. Therefore fluorine has less value for electron affinity than chlorine
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