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Describe the Cross aldol condensation ....

Describe the Cross aldol condensation .

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Discuss aldol condensation.

Describe the following: (i) Acetylation (ii) Cannizzaro reaction (iii) Cross aldol condensation (iv) Decarboxylation

Write an acttivity to prove the process of condensation.

Explain with one example for crossed aldol condensation.

Acetaldehyde undergoes the aldol condensation with dil. NaOH. This is because of the presence of

(A) : Propionaldehyde undergoes aldol condensation . (R) : Propionaldehyde contains five alpha hydrogen atoms

(A) : Acetaldehyde undergoes the aldol condensation with dil. NaOH. (R) : Acetaldehyde does not contain alpha -hydrogen

Among the following compounds, some undergo aldol condensation , some undergo Cannizzaro reaction and the remaining undergo neither aldol condensation nor Cannizzaro reaction . Differentiate them and write the structures of the products of aldol condensation and Cannizzaro reaction. i) Benzaldehyde ii) Cyclohexanone iii) Methanal iv) Benzophenone v) 2- Methylpentanal vi) Butan - 1- ol vii) 2,2 - Dimethylbutanal viii) Phenyl acetaldehyde iv) 1 - Phenylpropanone

Which of the following compounds would undergo aldol condensation, which the Cannizzaro reaction and which neither? Write the structures of the expected products of aldol condensation and Cannizzaro reaction. {:("(i) Methanal"," (ii) 2-Methylpentanal"," (iii) Benzaldehyde"),("(iv) Benzophenone"," (v) Cyclohexanone"," (vi) 1-Phenylpropanone"),("(vii) Phenylacetaldehyde"," (viii) Butan-1-ol"," (ix) 2,2-Dimethylbutanal"):}

Explain condensation

VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-ORGANIC COMPOUNDS CONTAINING C,H AND O-SHORT ANSWER QUESTIONS
  1. Which the IUPAC name of CH(3).CH(CH(3))CH(2)COOC(2)H(5)

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  2. Arrange the following in the increasing order of their acidic strength...

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  3. Describe the Cross aldol condensation .

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  4. Describe the Decarboxylation.

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  5. Explain the role of electron withdrawing and electron releasing groups...

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  6. Draw the structure of the Acetaldehydedimethylacetal .

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  7. Draw the structure of the ethylene ketal of hexan-3-one.

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  8. Draw the structure of the methyl hemiacetal of formaldehyde.

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  9. An organic compound contains 69.77% carbon, 11.63% hydrogen and rest o...

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  10. Explain Nucleophilic addition reaction mechanism of aldehydes and keto...

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  11. Write any two methods for the preparation of Aldehydes.

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  12. Write any two methods for the preparation of Ketones.

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  13. Explain Clemenson's reduction and Wolf Kishmer reduction reactions.

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  14. What is haloform reaction ? Give equation .

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  15. What is Cannizaro reaction ? Give equation .

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  16. What is HVZ reaction ? Give equation.

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  17. Write any three methods for the preparation of Carboxylic acid.

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  18. Explain Ring substitution reactions of aromatic carboxylic acids.

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  19. How do you prepare the Acetyl chloride compound from acetic acid ?

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  20. How do you prepare the Acetamide compound from acetic acid ?

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