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Which of the following combination of a...

Which of the following combination of aldehydes gives cross cannizzaro reaction ?

A

`CH_(3)CHO, HCHO`

B

`C_(6)H_(5)CHO, CH_(3)CHO`

C

`C_(6)H_(5)CHO, HCHO`

D

All of these

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The correct Answer is:
C
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Cross Cannizzaro reaction is

Which of the following reaction will aldehyde?

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. Which of the following compounds gives interal crossed Cannizzaro's reaction ?

TARGET PUBLICATION-ALDEHYDES, KETONES AND CARBOXYLIC ACIDS-EVALUATION TEST
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  4. The best oxidising agent for oxidation of CH(3)-CH=CH-CHO to CH(3)-CH=...

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  5. The acid produced (A ) in the sequence given below is : C(2)H(5)I ov...

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  7. A mixture of benzaldehyde and formaldehyde on heating with aqueous NaO...

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  10. In a reaction of C(6)H(5)Y the major product (gt60%) is m-isomer, so t...

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  11. Identify Z in the following sequence of reactions - CH(3)COONH(4) ov...

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  12. What is Z in the following sequence of reactions? Phenolunderset("du...

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  13. When CH(2)=CH -CO OH is reduced with LiAlH(4) the compound obtained wi...

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  14. Among the following acids, which has the lowest pK(a) value?

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  16. Saponification of ethyl benzoate with caustic soda as alkali gives

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  17. The smallest ketone and its next homologue are reacted with NH(2)OH to...

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  18. Which of the following combination of aldehydes gives cross cannizzar...

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  19. Which of the following reagents react differently with HCHO, CH(3)CHO ...

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