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  4. The acidic, basic or amphoteric nature of Mn2O7, V2O5 and CrO are respectively

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Q. The acidic, basic or amphoteric nature of $ M{{n}_{2}}{{O}_{7}}, $ $ {{V}_{2}}{{O}_{5}} $ and $ CrO $ are respectively

CMC MedicalCMC Medical 2013

Solution:

Acidic character increases with increase in oxidation state. $ M{{n}_{2}}{{O}_{7}}- $ acidic (Mn = +7) $ {{V}_{2}}{{O}_{5}}- $ amphoteric (V = +5) $ CrO- $ basic (Cr = +2)