Structures which help to delocalize the positive charge make important contribution towards nit resonance hybrid regardless of the fact whether the positive charge is on less or more electronegative atom.
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Solution
H3C−⊕C|−O−H↔(CH3)2−C=⊕O−H
CH3
↓
The positive charge on carbon is more stable.
2o carbocation is stable than hydronium carbon chain.