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Which of the following reagents can form...

Which of the following reagents can form a hydrazone with alkanone ?

A

`NH_(2)OH`

B

`PhNHNH_(2)`

C

`NH_(2)NHCONH_(2)`

D

HCN

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ALDEHYDES AND KETONES-objective Exercise -2A
  1. Which of the following compounds would undergo the Cannizaro reaction ...

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  2. An organic compound X gives a red precipitate on heating with Fehling'...

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  3. Which of the following reagents can form a hydrazone with alkanone ?

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  4. Benzyl alcohol is obtained from benzaldehyde by

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  5. A substance A containing three carbon atoms gives white crystalline pr...

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  6. A certain compound Y has a formula C(3)H(6)O. It combines with hydroxy...

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  7. CH(3)CHO and C(6)H(5)CHO can be distinguished chemically by

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  8. Cannizzaro reaction involves

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  9. Which of the following aldehyde contains alpha-C atom but does not hav...

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  10. A compound X has molecular formula C(2)Cl(3)OH. It reduces Fehling sol...

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  11. Which reagent is suitable for one step preparation of n-pentane from 2...

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  12. Which of the following can provides distinction between two functional...

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  13. Acetone overset("ethyleneglycol")rarr X. The product X in this react...

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  14. Treatement of propionaldehyde with dilute NaOH solution gives

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  15. Which of the following conversion can be brought about under Wolff-Kis...

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  16. C(6)H(5)CHO + HCN rarr C(6)H(5)CH(CN)OH. The product would be

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  17. When acetone undergoes reduction in presence of Zn-HCl/Hg, it is known...

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  18. R1 - COCl+R2 C d -> CdCl+X The organic compound 'X' is

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  19. C6H5CHO+C6H5COCH3overset(OH^(-) ,293K) to X, IUPAC name of cross co...

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  20. Cyanohydrin of which compound on hydrolysis will give lactic acid?

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