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Electron Gain Enthalpy

The electron ...

Question

The electron gain enthalpies of halogens in $k J m o l^{- 1}$ are as given below:
F = $- 332$ , Cl = $- 349$ , Br = $- 324$ , I = $- 295$ .
The less negative value for F as compared to that of CI is due to:

Strong electron-electron repulsion in the compact 2p- sub shell of F.

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Weak electron - electron repulsion in the bigger 3p- sub shell of Cl

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Smaller electronegativity value of F than Cl

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(A) and (B) both

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Solution

The correct option is D (A) and (B) both
Due to small size of F atom, the electron-electron repulsion in compact 2p- sub shell is large and hence, the incoming electron is not accepted with the same ease as in the case with Cl (less electron - electron repulsion)

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Similar questions

Q. The electron gain enthalpies of halogens in kJ mol

^{- 1}

are as given as F = -332, Cl = -349, Br = -324, I = -295. The less negative value for F as compared to that of Cl is due to :

Q. The electron gain enthalpies of halogens in

k J m o l^{- 1}

are as given below:
F =

- 332

, Cl =

- 349

, Br =

- 324

, I =

- 295

.
The less negative value for F as compared to that of CI is due to:

The electron affinities of halogens are F=322, Cl=349, Br=324, I=295 $k J m o l^{- 1}$ . The higher value for Cl as compared to that of F is due to

Q. The electron affinity of halogens are

F - 322, C l - 347, B r - 324, I = 295 k J {m o l}^{- 1}

. The higher value of

C l

as compared to that of

F

is due to:

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

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Electron Gain Enthalpy

Standard XIII Chemistry

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The electron gain enthalpies of halogens in kJ mol−1 are as given below: F = −332, Cl = −349, Br = −324, I = −295. The less negative value for F as compared to that of CI is due to:

The correct option is D (A) and (B) bothDue to small size of F atom, the electron-electron repulsion in compact 2p- sub shell is large and hence, the incoming electron is not accepted with the same ease as in the case with Cl (less electron - electron repulsion)

The electron gain enthalpies of halogens in $k J m o l^{- 1}$ are as given below:
F = $- 332$ , Cl = $- 349$ , Br = $- 324$ , I = $- 295$ .
The less negative value for F as compared to that of CI is due to:

The correct option is D (A) and (B) both
Due to small size of F atom, the electron-electron repulsion in compact 2p- sub shell is large and hence, the incoming electron is not accepted with the same ease as in the case with Cl (less electron - electron repulsion)