Question:
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Akenes undergo oxidation reactions with  dilute KMnO₄  and osmium tetroxide to give vicinal diols.
However hydroboration followed by oxidation results in addition of water by anti Markownikov's rule.
With Conc KMnO₄ ,carbon -carbon double bond oxidized to carboxylate ions which on addition of H+ gives carboxylic acids .
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