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प्रश्न
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Phenyl hydrazine
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उत्तर
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संबंधित प्रश्न
Answer in brief.
What is the action of hydrazine on cyclopentanone in presence of KOH in ethylene glycol?
_____________ reaction is used to synthesize straight alkyl substituted benzenes.
The following compounds will give positive Fehling’s test.
Explain haloform reaction with suitable example.
Write a reaction to distinguish acetaldehyde from acetone.
Aldol condensation between which of the following compounds followed by dehydration gives 4-Methylpent-3-en-2-one?
Which of following is not a property of red phosphorus?
Fehling solution is ____________.
In Clemmensen's reaction, ketone gives ____________.
Following reaction is an example of ____________.
\[\ce{Benzaldehyde ->[Nitration] {m}-Nitrobenzaldehyde}\]
Which of the following reagents is used to avoid further oxidation of aldehydes?
Which of the following reagents is used for the following conversion?
\[\ce{CH3 - CH = CH - CHO -> CH3 - CH = CH - CH2OH}\]
Predict the product Z in the following series of reactions.
\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]
\[\ce{CH3Br ->[KNC] (A) ->[H3O^+] (B) ->[PCl5] (C)}\] product (C) is:
Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid.
Identify X and Y.
\[\ce{CH3COCH2CH2COOC2H5 ->[CH3MgBr] X ->[H3O^+] Y}\]
Identify A, B and C.
What is the action of HCN on propanone?
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 will undergo self-aldol condensation in the presence of cold dilute alkali?
What is the number of different products formed when mixture of ethanal and propanal reacts with aq. NaOH after warming?
Which of the following is not correctly matched?
Identify the reaction in which carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with zinc-amalgam and cone. HCI.
What is the action of hydrogen cyanide on the following?
Acetone
How will you prepare acetic anhydride from acetic acid.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How will you prepare Acetic anhydride from acetic acid.
