Which of the following compounds does not exhibit tautomerism?

{C H}_{3} {N O}_{2}

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{C H}_{3} {C H}_{2} {N O}_{2}

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C_{6} H_{5} C H = C H - O H

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{C H}_{3} {C H}_{2} O H

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Solution

The correct option is D ${C H}_{3} {C H}_{2} O H$
Tautomers are two molecules with the same molecular formula but different connectivity - constitutional isomers, in other words - which can interconvert in a rapid equilibrium. The most common tautomeric relationship in organic chemistry is the keto-enol pair.

${C H}_{3} - {C H}_{2} O H$ doesnt show tautomerism as it is saturated molecule.

Option D is correct.

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Similar questions

{C H}_{3} - C H_{3} - {C H}_{2} - C H | O H - {C H}_{2} O H | C H - {C H}_{3}

C H_{2} = O H | C - C H_{2} - O | | C - C H_{3} ⇌ C H_{3} - O | | C - C H_{2} - O | | C - C H_{3} ⇌ C H_{3} - O H | C = C H - O | | C - C H_{3}

I

I I

I I I

C H_{2} = O H | C - C H_{2} (I) - O | | C - C H_{3} ⇌ C H_{3} - O | | C - C H_{2} (I I) - O | | C - C H_{3}

⇌ C H_{3} - O H | C = C H (I I I) - O | | C - C H_{3}

Which of the following compounds gives fastest reaction with HBr and why

(i) (CH3)3 COH

(ii) CH3 CH2 CH2OH

(iii) CH3 CHOH CH3

(iv) CH3 (CH3) CH CH2OH

H - X

C H_{2} = C H - O H

C H_{2} = C H - C H_{2} O H

C H_{3} - C H_{2} - O H

C H_{3} - C H | O H - C H_{3}

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