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Aldehydes with alpha-H atom do not under...

Aldehydes with `alpha-H` atom do not undergo disproportionation because:

A

Bond energy of `(C - H)` bond is increased due to `(-CHO)` group.

B

Aldehyde is enolised in basic condition

C

Both of these

D

None of these

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • Aldehyde having no alpha - hydrogen undergo disproportionation in presence of strong potash to give a corresponding salt of acid and alcohol . The reaction is known as ,

    A
    Wurtz reaction
    B
    Aldol condensation
    C
    Cannizzaro's reaction
    D
    Esterification

  • Which element undergoes disproportionation in water ?

    A
    `Cl_(2)`
    B
    `F_(2)`
    C
    `K`
    D
    `Cs `

  • Which of the folowing undergoes disproportionation?

    A
    `Ba^(2+)`
    B
    `Ba^(o+)`
    C
    `BaH_(2)`
    D
    `BaSO_(4)`
    • A2Z-ALDEHYDES, KETONES AND CARBOXYLIC ACID-Section D - Chapter End Test
    1. Aldehydes with alpha-H atom do not undergo disproportionation because:

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    2. Which of the following tests would help in the distinction of HCOOH an...

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    3. In Cannizzaro reaction, which of the following is a better hydride don...

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    4. Mark the correct order of increasing reactivity.

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    5. Compound (A) given below can undergo Cannizzaro reaction itself and cr...

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    6. CH3 CH=CHCHO is oxidised to CH3 CH=CHCOOH using :

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    7. Clemmensen's reduction will convert cyclohexanone into:

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    8. What of the following is expected to be most highly ionised in water ?

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    9. Ethylidene chloride is hydrolysed with aqueous NaOH. The product forme...

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    10. The vapours of ethyl alcohol are passed over red hot copper at 573 K t...

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    11. (CH(3))(2) CHOH overset ("Mild") underset ("oxidation"[0]) to (X) over...

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    12. The chemical reaction of acetaldehyde and ammonia results in:

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    13. When diethyl cadmium [(C(2)H(5))(2)Cd] is treated with acetyl chloride...

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    14. The product formed by the reaction of acetaldehyde with excess of etha...

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    15. Which of the following will not be formed when calcium formate is dist...

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    16. In order to prepare acetone from acetyl chloride in one step, which of...

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    17. Which of the following reagents can help in separating a mixture of ac...

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    18. The reagents used to convert

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    19. Which of the following is the stronger acid?

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    20. Of the following which compound is an acetal ?

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