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The product formed during Hell-Volhard-Z...

The product formed during Hell-Volhard-Zelinsky reaction is

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The Hell-Volhard-Zelinsky reaction is used for preparing

The product formed in the reaction

The product formed in the reaction

Carboxylic acids having atleast one alpha -hydrogen react with Cl_(2) or Br_(2) in the presence of phosphorus ( or a phosphorus halide) to give alpha -halo acids. This reaction is known as Hell-Volhard-Zelinsky reaction (HVZ reaction), R-CH_(2)COOHunderset(Delta)overset(P//Br_(2))toR-overset(Br)overset(|)"CH"-COOH The HVZ reaction is limited to the formation of alpha -chloro and a-bromo acids and it is sometimes awkward to carry out. The reagents ( X_(2) and P) are noxious and the reaction time is often long and the conditions of reaction are harsh. CH_(3)COOHoverset(Br_(2)//Red P)to(A)overset(NaCN)to(B)overset(HOH//H^(+))to(C ) The product (C) will be:

Carboxylic acids having atleast one alpha -hydrogen react with Cl_(2) or Br_(2) in the presence of phosphorus ( or a phosphorus halide) to give alpha -halo acids. This reaction is known as Hell-Volhard-Zelinsky reaction (HVZ reaction), R-CH_(2)COOHunderset(Delta)overset(P//Br_(2))toR-overset(Br)overset(|)"CH"-COOH The HVZ reaction is limited to the formation of alpha -chloro and a-bromo acids and it is sometimes awkward to carry out. The reagents ( X_(2) and P) are noxious and the reaction time is often long and the conditions of reaction are harsh. CH_(3)CH_(2)COOHoverset(Red P +Br_(2))to(A)overset(alc. KOH)(B) . The product (B) is :

Which of the following undergoes Hell - Volhard - Zelinsky reaction ?

The product formed during the Kolbe's reaction is

DINESH PUBLICATION-CARBOXYLIC ACIDS -ASSIGNMENT
  1. Acetic acids exists in dimer state in benzene due to

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  2. Why is benzoic acid a stronger acid than acetic acid ?

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  3. The product formed during Hell-Volhard-Zelinsky reaction is

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  4. Arrange the following in decreasing order of boiling point. (i) CH(3...

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  5. Explain the following about acetic acid (i) Its boiling point is hig...

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  6. What happens when : (i) Sodium acetate is heated with soda lime (i...

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  7. Complete the following : (i) CH(3)COOHoverset(P//B(2))rarr , (ii) CH...

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  8. Arrange the following in decreasing order of acidic strength

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  9. How will your prepare teriary butyl alcohol from acetic acid ?

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  10. Complete the missing links in the following :

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  11. (a) How will you prepare benzoic acid (i) from ethyl benzene (ii) ...

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  12. Explain giving reasons each of the following : (i) Chloroacetic acid...

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  13. Write short notes on : (i) Kolbe's electrolysis (ii) H.V.Z. reaction...

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  14. How will your convert : (i) Propionic acid to acetic acid (ii) Acety...

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  15. Give chemical tests to distinguish between : (i) Benzoic acid and ph...

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  16. Justify : Trichloroacetic acid is a stronger acid than dichloroaceti...

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  17. (a) Describe the preparation of acetic acid from acetylene. How can th...

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  18. Give a suitable example of H.V.Z. reaction.

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  19. Describe a test to distinguish between phenol and benzoic acid.

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  20. How will you convert benzene to benzoic acid ?

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