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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

The correct Answer is:
B
`CH_(2)-overset(O)overset(||)C-CH_(2)-overset(O)overset(||)(C)-CH_(2)-CH_(3), (-CH_(2)-)` group is flanked on both sides by electron-withdrawing groups and hence its hydrogen are most acidic. Once a carbanion is formed, it is stabilised due to resonance.
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A2Z-SOME BASIC PRINCIPALS OF ORGANIC CHEMISTRY-Acid And Basic Strength
  1. Choose the strongest base among the following:

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  2. Which of the following has lowest melting point?

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  3. Select the basic strength order of following molecules

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  4. What is formed in the above reaction?

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  5. Consider thiol anion (RS^(Theta)) and alkoxy anion (RO^(Theta)). Which...

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  6. The correct basic strength order of the following anions is:

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

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  8. Which of the following cannot be a base?

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  9. Arrange above phenol in increasing order of pK(a) value:

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  10. Arrange the following compounds in decreasing order of their acidic st...

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  11. Which compound would be least soluble in water?

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  12. Identify the correct order of boiling points of the following compound...

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  13. Most acidic hydrogen is present in:

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  14. The decreasing order of electron density on the ring is:

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  15. The correct order of increasing basicity of the given conjugate bases ...

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  16. Among the following compounds, the most acid is:

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  17. Correct dipole moment order is: underset((p))(CH(2)=CH-Cl),underset(...

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  18. Which of the following compound is the strongest base?

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  19. Arrange in the order of increasing acidic strengths.

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  20. Find more basic between following pairs of compounds? underset(...

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