Is SiO2 amphoteric or acidic?

Hence it is acidic. But SiO2 does not dissolve in water to give an acid. PS-here is a simple trick to know the acidic character of any metal or nonmetal oxide.

Why is SiO2 amphoteric?

Explanation. SnO2 reacts with acid as well as the base. So SnO2 is an amphoteric oxide. CaO is basic in nature, while SiO2 and CO2 are acidic in nature.

What type of oxide is SiO2?

Silica is also known as silicon dioxide, the chemical compound is oxide of silicon and the chemical formula is SiO2.

What are examples of amphoteric oxides?

Examples of amphoteric oxides are zinc oxide and aluminium oxide.

• ZnO(s) + 2HCl(aq) → ZnCl2(aq) + H2O(l)
• ZnO(s) + 2NaOH(a) → Na2ZnO2(aq) + H2O(l)
• Al2O3(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2O(l)
• Al2O3(s) + 2NaOH(aq) → 2NaAlO2(aq) + H2O(l)

Is BEO amphoteric oxide?

Beryllium oxide is amphoteric because it can react with both acidic and basic solutions.

Is GeO amphoteric oxide?

Germanium monoxide, GeO, is a chemical compound of germanium and oxygen. It is amphoteric dissolving in acids to form germanium(II) salts and in alkali to form “trihydroxogermanates” or “germanites” containing the Ge(OH)3− ion.

Which oxide is an amphoteric oxide?

Many metals (such as zinc, tin, lead, aluminium, and beryllium) form amphoteric oxides or hydroxides. Amphoterism depends on the oxidation states of the oxide. Al2O3 is an example of an amphoteric oxide. Amphoteric oxides also include lead (II) oxide, and zinc (II) oxide, among many others.

Which of the following is amphoteric oxide BeO?

And in alkalis to give beryllates, which on stading precipitate as hydroxide. BeO is, therefore, amphoteric. MgO reacts with water forming Mg(OH)2 which is extermely insoluble in water and hence weakly basic.

Which oxide of chromium is amphoteric?

Chromium: the only oxidation state of chromium that is amphoteric is $ + 3$ . So the amphoteric oxide of chromium with $ + 3$ oxidation state is $C{r_2}{O_3}$ . So the correct answer for the above question is option c) $Mn{O_2}$ and $C{r_2}{O_3}$ .