Which of these pairs of elements would be most likely to form an ionic compound?

C and S

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Cl and Mg

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Cl and I

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Al and K

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Solution

The correct option is B
Cl and Mg

Ionic compounds will be formed more easily between the elements with comparatively low ionization enthalpy and elements with comparatively high negative value of electron gain enthalpy.

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Similar questions

Q. Give the formulae of the compounds that would be formed by the combination of the following pairs of elements:
(a) Mg and N₂
(b) Li and O₂
(c) Al and Cl₂
(d) K and H

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(a) $M g a n d N_{2}$ (b) $L i a n d O_{2}$ (c) $A l a n d C l_{2}$ (d) $K a n d H$

Q. The pair of elements most likely to form an ionic compound are :

Question 48
Give the formulae of the stable binary compounds that would be formed by the combination of following pairs of elements.
(a) $Mg and N_{2}$
(b) $Li and O_{2}$
(c) $Al and {Cl}_{2}$
(d) $K and O_{2}$

Which of these pairs of elements would be most likely to form an ionic compound?

The correct option is B Cl and Mg Ionic compounds will be formed more easily between the elements with comparatively low ionization enthalpy and elements with comparatively high negative value of electron gain enthalpy.

The correct option is B
Cl and Mg

Ionic compounds will be formed more easily between the elements with comparatively low ionization enthalpy and elements with comparatively high negative value of electron gain enthalpy.