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Which of the following reagents cannot b...

Which of the following reagents cannot be used to distinguish between pebtanal and 2- pentanone ?

A

Fehling solution

B

`I_(2)` in NaOH

C

`Br_(2)` in `CS_(2)`

D

Tollen 's reagent,

Text Solution

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The correct Answer is:
C
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MODERN PUBLICATION-ALDEHYDES , KETONES AND CARBOXYLIC ACIDS-Multiple Choice Questions ( Level - II )
  1. Formalin is an aqueous solution of :

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  2. Which compound is oxidised to prepare methyl ethyl ketone?

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  3. Which of the following reagents cannot be used to distinguish between ...

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  4. The Cannizzaro 's reaction is not given by :

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  5. Formaldehyde reacts with ammonia to give

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  6. When two molecules of acetaldehyde condense in the presence of a dilut...

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  7. An alkene with molecular formula C(7)H(14) on reductive ozonolysis fol...

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  8. Which of the following will not give haloform reaction ?

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  9. In the reaction , CH(3)-underset(CH(3))underset(|)(C)=Ounderset(-H(2)O...

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  10. A compound X gives cyanohydrin with HCN and the cyanohydrin on hydroly...

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  11. Aldehydes give silver mirror test with ammoniacal silver nitrate solut...

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  12. Paraldehyde is a :

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  13. Benzaldehyde reacts with aniline to give :

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  14. Methyl alcohol and air when passed through a heated tube containing a ...

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  15. Acetone on reduction with Zn(Hg) , HCl gives :

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  16. In the reaction , 2CH(3)CHOoverset(dil . NaOH)toXunderset("Heat")overs...

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  17. The reaction , C(6)H(5)CHO+CH(3)CHOunderset("Heat")overset(dil . NaOH)...

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  18. The reaction , C(6)H(5)CHO+(CH(3)CO)(2)Ounderset(180^(@)C)overset(CH(3...

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  19. Which of the following gives a pink colouration with Schiff s reagent ...

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  20. Formaldehyde reacts with ammonia to give white precipitate of hexameth...

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