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Mixture of Ph–CHO&HCHO is treated with N...

Mixture of Ph–CHO&HCHO is treated with NaOH then Cannizzaro reaction involves:

A

Oxidation of HCHO

B

Reduction of HCHO

C

Oxidation of Ph–CHO

D

Reduction of Ph–CHO

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The correct Answer is:
A, D
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In Cannizzaro reaction-

Cannizzaro's reaction is

Mixuture of Ph-overset(O)overset(||)C-H and HCHO is treated with NaOH, then Cannizzaro reaction involves :

Aldehydes undergo disproportionation reaction in presence of aqueous NaOH. Simultaneous oxidation and reduction of a compound is scientifically called as disproportionatio. Aldehydes having no alpha - hydrogen show this reaction called Cannizzaro's reactio. Few exceptions are also there to this generalisation. The reaction may be represented as : C_(6)H_(5)CHO+C_(6)H_(5)CHOoverset(NaOH)underset(Delta)rarrC_(6)H_(5)COONa+C_(6)H_(5)CH_(2)OH Intramolecular Carrizzaro's reaction is also possible. Mixture of C_(6)H_(5)CHO and HCHO is teated with NaOH then Cannizzaro's reaction involves :

The Cannizzaro's of formaldehyde involves

Assertion : 2, 2- Dimethylpropanal undergoes Cannizzaro reaction with cone. NaOH Reason : Cannizzaro reaction is a disproportionation reaction

MOTION-CARBONL COMPOUNDS-EXERCISE -2 (LEVEL-II)
  1. Which one of the following is mixed ketone (Aliphatic & aromatic):

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  2. Stability of hydrates of carbonyl compounds depends on:

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  3. Whcih of following give positive test with 2,4-DNP?

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  4. Fehling solution gives red precipatic with :

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  5. Silver mirror test with Tollen's reagent is give by :

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  6. Which one of the following compounds will not give aldol:

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  7. Schiff's reagent gives pink colour with :

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  8. Which of the following compound will give positive Tollen’s test

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  9. Carbonyl group show characteristic reaction of nucleophilic addition i...

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  10. Carbonyl group show characteristic reaction of nucleophilic addition i...

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  11. Aldehydes and ketones react with oine molecule of analcohol to form co...

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  12. Aldehydes and ketones react with one molecule of an alcohol to form co...

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  13. Aldehydes and ketones react with oine molecule of analcohol to form co...

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  14. Match list-l with list-ll and select the correct answer using the code...

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  15. Column l Column ll (Reagent used) (P) Al(OCHMe(2))(3) or H(2)/N...

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  16. Two isomeric Ketones, 3-pentanone and 2-pentanone can be distinguished...

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  17. Mixture of Ph–CHO&HCHO is treated with NaOH then Cannizzaro reaction i...

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  18. PhCHO + HCHO overset("Conc.KOH")(rarr) Correct statement regarding r...

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