An ionic compound A^(+)B^(-) is most lik...

An ionic compound `A^(+)B^(-)` is most likely to be formed when :

The ionization energy of A is high and the electron affinity of B is low

The ionization energy of A is low and the electron afinity of B is high

The ionization energy of A and the electron affinity of B is high

The ionization energy of A and the electron affinity of B is low

Text Solution

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The correct Answer is:

The conditions required for the formation of an ionic bond are :
(i) Ionization enthalpy `[M(g) rarr M+(B) + e^(-)]` of electropositive element must be low.
(ii) Negative value of electron gain enthalpy `[X (g) + e^(-) Xrarr( g)]` of electronegative element should be high

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A ionic compound A^(+) B ^(-) is most likely to be formed when

ioniczation enthalpy of A is higt and electron gain enthalpy of B is low

ionization enthalpy of A is low and electron gain enthalpy of B is high

Ionic compounds genergally have low m.p. and b.p.

ionization enthalpy of A and electron gain enthalpy of B is low

An ionic bond A B is most likely to be formed when:

The ionization energy of A is high and the electron affinity of B is low

The ionization energy of A is low and the electron afinity of B is high

The ionization energy of A and the electron affinity of B is high

The ionization energy of A and the electron affinity of B is low

The ionic compound A^(+)B^(-) is formed when the

electron gain enthalpy of B is high

ionization energy of A is low

lattice energy of AB is high

lattice energy of AB is low