Sodium oxide is a basic oxide. Question 14 options: True False
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Assertion: Sodium reacts with oxygen to form Sodium oxide which is a basic oxide. Reason: Metals form acidic oxides
Adi S.
Sodium oxide, $\mathrm{Na}_{2} \mathrm{O}$, is a white-gray powder that sublimes (goes directly from solid to gas) at $1275^{\circ} \mathrm{C}$. Is sodium oxide a molecular or nonmolecular solid? Answer: First, sodium oxide is made from a group IA (1) metal and a nonmetal. This practically ensures that the compound is a nonmolecular ionic solid. Second, this compound sublimes at a tremendously high temperature. This also indicates that the compound is nonmolecular (the high temperature is required to break ionic bonds in the lattice of $\mathrm{Na}^{+}$ and $O^{2-\text { ions })} .$
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The acidic, basic and amphoteric oxides, respectively, are: (a) $\mathrm{Na}_{2} \mathrm{O}, \mathrm{SO}_{3}, \mathrm{Al}_{2} \mathrm{O}_{3}$ (b) $\mathrm{Cl}_{2} \mathrm{O}, \mathrm{CaO}, \mathrm{P}_{4} \mathrm{O}_{10}$ (c) $\mathrm{N}_{2} \mathrm{O}_{3}, \mathrm{Li}_{2} \mathrm{O}, \mathrm{Al}_{2} \mathrm{O}_{3}$ (d) $\mathrm{MgO}, \mathrm{Cl}_{2} \mathrm{O}, \mathrm{Al}_{2} \mathrm{O}_{3}$
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