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Which of the following has the most acid...

Which of the following has the most acidic hydrogen ?

A

3-hexanone

B

2,4-hexanedione

C

2,5-hexanedione

D

2,3-hexanedione

Text Solution

Verified by Experts

When `gt CH_(2)` group is surrounded by two election withdrawing ( electronegative ) carbonyl group then, it is most reactive and its both hydrogen atoms are acidic in character.
Thus, `CH_(3)COCH_(2)COCH_(2)CH_(3)` ( 2,4-hexanedione ) is one of the reactive methylene compounds.
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VMC MODULES ENGLISH-ALDEHYDES,KETONES & CARBOXYLIC ACIDS -EXAMPLE 1
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  2. A compound that gives a positive iodofrm test is :

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  3. When acetaldehyde is heated with Fehling's solution it gives a precipi...

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  4. Cannizzaro's reaction is not given by …..

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  5. The compound that will not give iodoform on treatement with alkali and...

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  6. Which of the following compounds is oxidised to prepare methyl ethyl k...

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  7. m-Chlorobenzaldehyde on reaction with concentrated KOH at room temera...

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  8. In Cannizzaro reaction given below : 2PhCHO overset(: OH^(-)) to ...

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  9. Which of the following will react with water to form a stable hydrate-

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  10. The enol form of acetone after treatment with D(2)O gives:

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  11. Which of the following has the most acidic hydrogen ?

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  12. The appropriate reagent for the following transformation is :

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  13. Which one of the following compounds will be most readily dehydrated ?

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  14. A mixture of benzaldehyde and formaldehyde on heating with aqueous NaO...

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  15. Compound (X) with molecular formula C(3)H(8)O is treated with acidifie...

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  17. Ph - C -= C-CH(3) overset(Hg^(2+)//H(2)SO(4)(aq)) to A The major pro...

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  18. The order of reactivity of Phenyl magnesium bromide (PhMgBr) with the ...

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  19. How will you convert butan -2-one to propanoic acid ?

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