Arrange the following in increasing order of the property indicated:
F, Cl, Br and I (electron gain enthalpy)

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Solution

Increasing order of electron gain enthalpy is -

$I < B r < F < C l$

$C l + e^{-} \to C l^{-} + Δ H$
Electron gain enthalpy is the energy evolved when an electron is added in the outermost shell.

Energy evolved in addition of electron is highest for Chlorine because it has highest tendency to accept electron in its outermost shell.

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Similar questions

In which of te following options order of arrangement does not agree with the variation of property indicated against it?
(a) $A l^{3 +} < M g^{2 +} < N a^{+} < F -$ (Increasing ionic size)
(b) B < C < N < O (Increasing first ionlsation enthalpy)
(c) I < Br < Cl< F (increasing electron gain enthalpy)
(d) Li < Na< K < Rb (Increasing metallic radius)

Arrange the following in the order of property indicated for each set:

(i) F₂, Cl₂, Br₂, I₂ - increasing bond dissociation enthalpy.

(ii) HF, HCl, HBr, HI - increasing acid strength.

(iii) NH₃, PH₃, AsH₃, SbH₃, BiH₃ − increasing base strength.

Arrange the following in the order of property indicated for each set:

$F_{2}, C l_{2}, B r_{2}, I_{2}$ - increasing bond dissociation enthalpy.

HF,HCl, HBr, HI- Increasing acid strength.

$N H_{3}, P H_{3}, A s H_{3}, S b H_{3}, B i H_{3}$ - increasing base strength.

Q. Arrange the following in increasing order of property indicated:
(i) Li, Be and B (ionization energy)
(ii) F, Cl, Br, I (electron affinity)
(iii) SiO₂, P₂O₅, SO₃, Cl₂O₇ (acidic nature)
(iv) I, I⁺, I⁻ (atomic size)

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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Arrange the following in increasing order of the property indicated: F, Cl, Br and I (electron gain enthalpy)

Arrange the following in increasing order of the property indicated:
F, Cl, Br and I (electron gain enthalpy)