हिंदी

Write the products formed when CH3CHO reacts with the following reagents: CH3CHO in the presence of dilute NaOH

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प्रश्न

Write the products formed when CH3CHO reacts with the following reagents: CH3CHO in the presence of dilute NaOH

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उत्तर १

Two molecules of ethanal condense in presence of a dilute NaOH to form 3 hydroxybutanal.

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उत्तर २

Reaction of acetaldehyde with acetaldehyde in the presence of dilute NaOH, this is the kind of Aldol reaction by which obtained 3-hydroxybutanal as product. Further proceed reaction when using heat in the reaction, its gives aldol condensation product which is But-2-enal

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2013-2014 (March) All India Set 2

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

How will you bring about the following conversion in not more than two steps?

Ethanol to 3-Hydroxybutanal


Explain aldol condensation reaction in detail.


Cannizaro’s reaction is not given by ______.


Which product is formed when the compound  is treated with concentrated aqueous \[\ce{KOH}\] solution?


Which of the following compounds do not undergo aldol condensation?

(i) \[\ce{CH3 - CHO}\]

(ii)  

(iii)  \[\begin{array}{cc}
\phantom{}\ce{O}\\
\phantom{}||\\
\ce{CH3 - C - CH3}
\end{array}\]

(iv) \[\begin{array}{cc}
\phantom{}\ce{CH3}\\
|\phantom{...}\\
\ce{CH3 - C - CHO}\phantom{..}\\
|\phantom{...}\\
\phantom{}\ce{CH3}\\
\end{array}\]


Which of the following conversions can be carried out by Clemmensen Reduction?

(i) Benzaldehyde into benzyl alcohol

(ii) Cyclohexanone into cyclohexane

(iii) Benzoyl chloride into benzaldehyde

(iv) Benzophenone into diphenyl methane


What product will be formed on reaction of propanal with 2-methylpropanal in the presence of \[\ce{NaOH}\]? What products will be formed? Write the name of the reaction also.


When liquid ‘A’ is treated with a freshly prepared ammoniacal silver nitrate solution, it gives bright silver mirror. The liquid forms a white crystalline solid on treatment with sodium hydrogensulphite. Liquid ‘B’ also forms a white crystalline solid with sodium hydrogensulphite but it does not give test with ammoniacal silver nitrate. Which of the two liquids is aldehyde? Write the chemical equations of these reactions also.


Which of the following gives aldol con~ensation reaction?


Which of the following does not give aldol condensation reaction?


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