Question

Give reason that the lowest oxide of chromium CrO is basic whereas the highest oxide
of chromium is acidic​

Answer 1

Answer:

Amphoteric Oxides can be either acidic or basic. They can neutralize acid or base. Chromium(III) oxide is amphoteric. Although insoluble in water, it dissolves in acid to produce hydrated chromium ions, [Cr(H2O)6]3+ which react with base to give salts of [Cr(OH)6]3−. It dissolves in concentrated alkali to yield chromite ions.

The lower the oxidation state of the metal, the more ionic (basic) it will be. In case of Cr: Cr+2O, Cr2 +3O3, Cr+6O3; the most ionic is CrO (lowest ox. state). The most covalent is CrO3 (highest ox. state) \ CrO is basic, CrO3 is acidic and Cr2O3 is amphoteric.

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Answer 2

Answer:

Hey mate. This is your answer.

Explanation:

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