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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.
The following compounds will give positive Fehling’s test.
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Tollen’s reagent
ln which of the following reactions, both oxidised and reduced forms of the same compound are obtained?
Which of the following is a Wolf - Kishner reduction?
Which of the following reagents is used to avoid further oxidation of aldehydes?
Predict the product Z in the following series of reactions.
\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]
\[\ce{Benzoic acid ->[i) NH3][ii) \Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\] ‘C’ is:
Which one of the following reaction is an example of disproportionation reaction.
How will you convert benzaldehyde into the following compound?
α-hydroxy phenyl acetic acid
What is the action of HCN on propanone?
What is the action of HCN on 2, 4-dichlorobenzaldehyde?
What is the action of HCN on ethanal?
How is the following conversion effected phenyl methanal into benzoin?
Identify A, B and C.
How will you prepare acetic anhydride from acetic acid?
How will you prepare ethyl acetate from methyl acetate?
The reagent used in Wolf - Kishner reduction is ______.
Primary nitroalkanes are obtained in good yield by oxidising aldoximes with the help of ______.
A substance C4H10O yields on oxidation a compound, C4H8O which gives an oxime and a positive iodoform test. The original substance on treatment with a conc. H2SO4 gives C4H8. The structure of the compound is ______.
Which of the following reaction does not involve either oxidation or reduction?
Which of the following compounds does not undergo a haloform reaction?
Give two examples which undergo Wolf-Kishner reduction.
How are the following compound obtained from alkyne?
Acetaldehyde
Write a note on Clemmensen reduction.
How will you prepare Acetic anhydride from acetic acid ?
