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) $K and O_{2}$

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Solution

$(a) 3 Mg(s) + N_{2} (g) \to {Mg}_{3} N_{2} (s) (Magnesium nitride) (b) 4 Li(s) + O_{2} (g) \to 2 {Li}_{2} O(s) (Lithium oxide) (c) 2 Al(s) + 3 {Cl}_{2} (g) \to 2 {AlCl}_{3} (s) (Aluminium chloride) (d) 4 K(s) + O_{2} (g) \to 2 K_{2} O (Potassium oxide)$

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Formation of Complexes

Standard XII Chemistry

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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 N2 (b) Li and O2 (c) Al and Cl2 (d) K and O2

(a) 3Mg(s)+N2(g)→Mg3N2(s) (Magnesium nitride)(b) 4Li(s)+O2(g)→2Li2O(s) (Lithium oxide)(c) 2Al(s)+3Cl2(g)→2AlCl3(s) (Aluminium chloride)(d) 4K(s)+O2(g)→2K2O (Potassium oxide)

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) $K and O_{2}$

$(a) 3 Mg(s) + N_{2} (g) \to {Mg}_{3} N_{2} (s) (Magnesium nitride) (b) 4 Li(s) + O_{2} (g) \to 2 {Li}_{2} O(s) (Lithium oxide) (c) 2 Al(s) + 3 {Cl}_{2} (g) \to 2 {AlCl}_{3} (s) (Aluminium chloride) (d) 4 K(s) + O_{2} (g) \to 2 K_{2} O (Potassium oxide)$