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प्रश्न
Answer in brief.
What is the action of hydrazine on cyclopentanone in presence of KOH in ethylene glycol?
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उत्तर
संबंधित प्रश्न
Answer in brief.
Observe the following equation of reaction of Tollens' reagent with aldehyde. How do we know that a redox reaction has taken place? Explain.
\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]
Write a note on Stephen reaction.
_____________ reaction is used to synthesize straight alkyl substituted benzenes.
Write another name of disproportionation reaction?
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Phenyl hydrazine
The product formed after reaction between benzaldehyde and methyl magnesium iodide followed by acid hydrolysis is ____________.
Which of the following gives red precipitate with Fehling's solution?
An aldehyde or ketone reacts with hydrogen cyanide to form corresponding cyanohydrin derivatives. This reaction is an example of ____________.
Fehling solution is ____________.
\[\ce{CH3Br ->[KNC] (A) ->[H3O^+] (B) ->[PCl5] (C)}\] product (C) is:
Identify the product formed in the reaction.
In which case, chiral carbon is not generated by reaction with HCN.
What is the action of HCN on propanone?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How is the following conversion effected propanal into butanone?
Complete the following reaction.
\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]
How will you prepare malachite green from benzaldehyde?
Which of the following compounds is most reactive towards nucleophilic addition reactions?
How propanal is converted into propane.
In the above reaction, product (B) is:
Which of the following reaction does not involve either oxidation or reduction?
A carbonyl compound A having molecular formula C5H10O forms crystalline precipitate with sodium bisulphate and gives positive iodoform test. A does not reduce Fehling solution. Identify A.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How will you prepare Acetic anhydride from acetic acid.
Nitration of the compound is carried out; this compound gives a red-orange ppt. with 2,4-DNP, this compound undergoes the Cannizzaro reaction but not aldol, then possible product due to nitration is:
