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Although aldehydes are easily oxidisable...

Although aldehydes are easily oxidisable, propanal can conveniently be prepared by oxidation of propanol by acidified potassium dichromate. Why ?

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The aldehydes can be conveniently oxidised to their respective acids only if they are not removed from the reaction mixture during preparation. As the boiling point of propanal is low (323K), it is conveniently distilled out during the reaction. This avoids its further oxidation.
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Carbonyl compounds give different oxidation products with different reagents .Several oxidising agents can be used to oxidise carbonyy compounds .Ammonical silver nitate (tollens reagent ) oxidises aliphatic as well as aromatic aldehydes . R-CHO overset("Tollens reagents ") to R-COOh +Ag (silver mirror ) strong oxidatising agents like KMnO_4 //H^+ ,HNO_3 ,K_2 Cr_2 O_7 //H^+ oxidise Aldehydes as well as ketons . open chain ketons in oxidation give mixture of two carbonylic acids . oxidation as well as ketons of unsymmetrical ketons takes place according to popoff's rule .According to this rule alpha - carbon whose bond breaks in oxidation always belongs to the alkyl group which has more number of carbons the reagent which oxidise only aliphatic ketone is :

Carbonyl compounds give different oxidation products with different reagents .Several oxidising agents can be used to oxidise carbonyy compounds .Ammonical silver nitate (tollens reagent ) oxidises aliphatic as well as aromatic aldehydes . R-CHO overset("Tollens reagents ") to R-COOh +Ag (silver mirror ) strong oxidatising agents like KMnO_4 //H^+ ,HNO_3 ,K_2 Cr_2 O_7 //H^+ oxidise Aldehydes as well as ketons . open chain ketons in oxidation give mixture of two carbonylic acids . oxidation as well as ketons of unsymmetrical ketons takes place according to popoff's rule .According to this rule alpha - carbon whose bond breaks in oxidation always belongs to the alkyl group which has more number of carbons which of the following is most reactive towards oxidation ?

Carbonyl compounds give different oxidation products with different reagents .Several oxidising agents can be used to oxidise carbonyy compounds .Ammonical silver nitate (tollens reagent ) oxidises aliphatic as well as aromatic aldehydes . R-CHO overset("Tollens reagents ") to R-COOh +Ag (silver mirror ) strong oxidatising agents like KMnO_4 //H^+ ,HNO_3 ,K_2 Cr_2 O_7 //H^+ oxidise Aldehydes as well as ketons . open chain ketons in oxidation give mixture of two carbonylic acids . oxidation as well as ketons of unsymmetrical ketons takes place according to popoff's rule .According to this rule alpha - carbon whose bond breaks in oxidation always belongs to the alkyl group which has more number of carbons 2 methyl cyclohexanone in oxidation wil give

Carbonyl compounds give different oxidation products with different reagents .Several oxidising agents can be used to oxidise carbonyy compounds .Ammonical silver nitate (tollens reagent ) oxidises aliphatic as well as aromatic aldehydes . R-CHO overset("Tollens reagents ") to R-COOh +Ag (silver mirror ) strong oxidatising agents like KMnO_4 //H^+ ,HNO_3 ,K_2 Cr_2 O_7 //H^+ oxidise Aldehydes as well as ketons . open chain ketons in oxidation give mixture of two carbonylic acids . oxidation as well as ketons of unsymmetrical ketons takes place according to popoff's rule .According to this rule alpha - carbon whose bond breaks in oxidation always belongs to the alkyl group which has more number of carbons Tollens reagent gives positive test with

AAKASH SERIES-ALDEHYDES AND KETONES-Problem
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  5. Two organic compounds (A) and (B) with molecular formula, C3H6O , reac...

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  6. Although aldehydes are easily oxidisable, propanal can conveniently be...

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  7. Aldehydes do not form stable hydrates, yet chloral hydrate is readily ...

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  8. How is acetaldehyde distinguished from acetone?

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  9. What are metaldehyde and paraldehyde?

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  10. What products are obtained in a crossed Cannizzaro reaction, involving...

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  11. An organic compound having molecular formula C5H(10) O exists in two c...

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  12. Benzaldehyde is treated with acetaldehyde in presence of dilute alkali...

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  13. How do you distingush between benzaldehyde and acetophenone?

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  14. Given the structures of the compounds formed when the reaction takes p...

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  15. C(6)H(6) + C(2)H(5)Cl overset(AlCl(3))rarr X underset((CH(3)COO)(2)Mn)...

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  16. How do you prepare acetophenone from benzene?

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  17. What is the rate determining step in Cannizzaro's reaction?

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  18. Predict products in the following reactions and write their structures...

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  19. Can (CH3)3 CCHO undergo Cannizzaro reaction ?

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  20. C(6)H(6) + C(2)H(5)Cl overset(AlCl(3))rarr X underset((CH(3)COO)(2)Mn)...

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