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प्रश्न
What is the action of following reagents on ethanoic acid?
P2O5/heat
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उत्तर
Ethanoic acid on heating with strong dehydrating agent P2O5 forms acetic anhydride.
\[\begin{array}{cc}
\phantom{............}\ce{O}\phantom{........}\ce{O}\phantom{}\\
\phantom{............}||\phantom{........}||\phantom{}\\
\ce{\underset{\text{Ethanoic acid}}{2CH3COOH} ->[\ce{P2O5}/\Delta] \underset{\text{Acetic anhydride}}{CH3 _ C - O - C - CH3} + H2O}
\end{array}\]
संबंधित प्रश्न
Write the structure of the product of the following reaction:
\[\ce{H3C - C ≡ C - H ->[Hg^{2+}, H2SO4]}\]
Complete the synthesis by giving missing starting material, reagent or product.

Complete the synthesis by giving missing starting material, reagent or product.

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Gatterman - Koch formylation
Complete the following reaction:
\[\ce{(C6H5CH2)2Cd + 2CH3COCI}\]
Answer the following in one sentence.
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\[\ce{CH3 - CH2 - COOCH3->[i) AIH(i-Bu)_2][ii) H3O+]}\]?
The formation of aldehyde from an alkyl cyanide using SnCl2/conc.HCl is known as ____________.
An acylchloride is hydrogenated over catalyst palladium on barium sulphate to form an aldehyde. This reaction is called as ______.
Which of the following is a Stephen reaction?
Which of the following is called as mandelonitrile?
Which of the following represents Etard's reaction?
The reaction in which methyl group on benzene ring is converted to aldehydic group is called ______.
The product of the reaction between dimethylcadmium and acetyl chloride is ____________.
Identify 'A' in the following reaction:
\[\begin{array}{cc}
\phantom{...........}\ce{O}\\
\phantom{...........}||\\
\ce{2A + (C6H5CH2)2 Cd -> 2CH3 - C - CH2 - C6H5 + CdCl2}\end{array}\]
Which among the following compound on treatment with DIBAL-H yields dodecanal at 195 K?
Which of the following compounds does NOT undergo Friedel-Crafts reaction?
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Which of the following is obtained by hydrogenation of benzoyl chloride in presence of Pd on BaSO4?
Chromyl chloride converts methyl group to a chromium complex, which on acid hydrolysis gives corresponding aldehyde. This reaction is called ____________.
Which of the following reaction is shown by alkynes?
Two isomers 'A' and 'B' with molecular formula C4H8 give different products on oxidation with KMnO4 in acidic medium. Isomer 'A' on reaction with KMnO4/H+ results in the effervescence of gas and gives ketone. The compound 'A' is:
Which reagent is used in Etard reaction?
What is the action of hydrogen cyanide on the following?
Benzaldehyde
Write Stephen reaction for the preparation of aldehyde.
Identify the reagent R used in following transformation.
Identify the suitable reagent for the following conversion.

Identify the reagent ‘R’ necessary to bring the following conversion.

