What kind of isomerism exist between Pentan-2-one and Pentan-3-one?

Chain

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Position

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Mesomerism

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Tautomerism

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Solution

The correct option is B Position
Position isomerism exists between pentan-2-one and pentan-3-one.
It is due to the difference in the position of the carbonyl group in the same carbon chain.
2-pentanone is $C H_{3} C O C H_{2} C H_{2} C H_{3}$
3-pentanone is
$C H_{3} C H_{2} C O C H_{2} C H_{3}$

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H^{\oplus}

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C

3- pentanol is [RPET 2002]

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