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In CrO, the oxidation state of chromium is+2while in Cr2O3 the oxidation stateofchromium is +3. The oxides formed by elements in loweroxidationstate are basic while those in higher oxidation state areacidic oramphoteric. As a result, it can accept electronsand behaveas an acid.
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Consequently, is BeO amphoteric?
BeO dissolves in strongly acidic orbasicsolutions. Therefore, it is an amphoteric oxide. As weknow,according to diagonal relationship between aluminum andberyllium,both have similar properties. As oxide of aluminumisamphoteric in nature, similarly BeOisamphoteric.
Furthermore, is Cr2O3 amphoteric oxide? As oxidation no. increases, charge increasesandthus oxides become acidic. Chromium(III) oxideisamphoteric. Although insoluble in water, it dissolvesinacid to produce hydrated chromium ions, [Cr(H2O)6]3+ whichreactwith base to give salts of [Cr(OH)6]3−.
Additionally, is ZnO amphoteric?
ZnO reacts with hydrochloric acidformingzincchloride and water. With sodium hydroxide, it formssodiumzincate and water. Answer: amphoteric oxide are thosewhichcan rect with both acids and bases , zinc oxide reactswithboth of them therefore it's considered n amphotericacid.
Which is an amphoteric acid?
In chemistry, an amphoteric compound is amoleculeor ion that can react both as an acid and as abase. Manymetals (such as copper, zinc, tin, lead, aluminium, andberyllium)form amphoteric oxides or hydroxides. Amphoterismdepends onthe oxidation states of the oxide.