Which of the following has highest electron gain enthalpy ?

F

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C l

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B r

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I

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Solution

The correct option is B $C l$
Although fluorine is most electronegative element but chlorine has more electron gain enthalpy. This is because of the small size of the fluorine so addition of electron is not favorable process because repulsion between the electrons takes place.

So electron gain enthalpy chlorine is more than the other elements.

Hence option B is correct.

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Similar questions

Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy ) is
(a) F > Cl > Br > I (b) F < Cl < Br < I (c) F < Cl > Br > I (d) F < Cl < Br < I

Q. Which of the following species has the highest electron gain enthalpy ?

Q. Which of the following options does not give to the correct trends indicated against it?
(I)

F_{2} > C l_{2} > B r_{2} > I_{2}

: Bond dissociation energy
(II)

F_{2} > C l_{2} > B r_{2} > I_{2}

: Oxidizing nature
(III)

C l > F > B r > I

: Electron gain enthalpy
(IV)

F > C l > B r > I

: Electronegativity

Q. Which of the following options does not give to the correct trends indicated against it?
(I)

F_{2} > C l_{2} > B r_{2} > I_{2}

: Bond dissociation energy
(II)

F_{2} > C l_{2} > B r_{2} > I_{2}

: Oxidizing nature
(III)

C l > F > B r > I

: Electron gain enthalpy
(IV)

F > C l > B r > I

: Electronegativity

Q. Which of the following element has highest electron-gain enthalpy?

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