Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 18

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Under Wolf Kishner reduction conditions, the conversions which may be brought about are?

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Important Questions on Aldehydes, Ketones and Carboxylic Acids

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Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 19

An organic compound, $C_{3} H_{6} O$ does not give a precipitate with $2, 4$ -dinitrophenylhydrazine reagent and does not react with metallic sodium. It could be_______.

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Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 20

In the given reaction sequence

Ph - {CH}_{2} - CHO \overset{NaOH}{\to} \overset{∆}{\to} \overset{H_{2} / Ni}{\to} (X)

Product

(X)

will be:

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Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 21

Among the following compounds, which one will react with acetone to give a product that contains carbon-nitrogen double bond?

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Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 22

Consider the following intramolecular aldol condensation reaction.

Question Image $X$ can be :

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Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 23

In the given reaction

{CH}_{3} - {CH}_{2} - \underset{\overset{| |}{O}}{C} - {OC}_{2} H_{5} + H - \underset{\overset{| |}{O}}{C} - {OC}_{2} H_{5} \to_{C_{2} H \overset{. .}{_{5} \underset{. .}{O}} 5 H}^{C_{2} H_{5} \overset{⊝}{O} \overset{\oplus}{N} a} \to_{∆}^{H_{2} O}

the major product will be

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Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 24

Which of the following reaction will give

β

-keto aldehyde as the final product?

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Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 25

An organic compound

X

on treatment with acidified

K_{2} {Cr}_{2} O_{7}

gives a compound

Y

, which reacts with

I_{2}

and sodium carbonate to form tri-iodomethane. The compound

X

is

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Alpha Question Bank for Medical: Chemistry>Chapter 25 - Aldehydes, Ketones and Carboxylic Acids>Exercise 5>Q 26

In the given reaction sequence Question Image

Question Image

Compound

(B)

is: