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प्रश्न
Acetaldehyde, when treated with which among the following reagents does NOT undergo addition reaction?
(A) Ammonia
(B) Hydroxylamine
(C) Ammoniacal silver nitrate
(D) Semicarbazide
उत्तर
(C) Ammoniacal silver nitrate
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संबंधित प्रश्न
How are the following compounds prepared?
benzaldehyde from benzene
Write the structures of the main products when acetone (CH3 − CO − CH3) reacts with the following reagent :
H2N − NHCONH2/H+
Write the products formed when CH3CHO reacts with the following reagents : H2N – OH
Predict the product of the following reaction:
\[\begin{array}{cc}
\phantom{..............}\ce{O}\\
\phantom{..............}||\\
\ce{R - CH = CH - CHO + NH2 - C - NH - NH2 ->[H+]}\end{array}\]
Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents.
Semicarbazide and weak acid
Give plausible explanation for the following:
Cyclohexanone forms cyanohydrin in good yield but 2, 2, 6 trimethylcyclohexanone does not.
Write balanced chemical equations for action of ammonia on - acetone
Give a simple chemical test to distinguish between 
Write the main product formed when propanal reacts with the following reagents:
2 moles of 3 CH OH in presence of dry HCl
Write the main product formed when propanal reacts with the following reagents:
H2N- NH2 followed by heating with KOH in ethylene glycol.
Write a test to differentiate between pentan-2-one and pentan-3-one.
Grignard reagent on reaction with acetone forms.
The most stable reagent for the conversion of R – CH2OH → RCHO is
Write the name of product formed, when acetone is treated with 2, 4-dinitrophenyl hydrazine.
What is the action of sodium hypoiodite on acetone?
What happens when propanone is treated with CH3MgBr and then hydrolysed?
What happens when ethanal is treated with excess ethanol and acid?
Which will undergo faster nucleophilic addition reaction?
Acetaldehyde or Propanone
The product of following reaction is
\[\ce{CH3 - CH = CH - CH2 - CHO ->[i) LiAlH4][ii) H3O+]}\] ______?
Write the structure of the product formed when acetone reacts with 2, 4 DNP reagent.
Draw structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw structures of the following derivative.
The ethylene ketal of hexan-3-one
The product of the following reaction is
\[\begin{array}{cc}
\ce{O}\phantom{.........}\\
||\phantom{.........}\\
\ce{C2H5 - C - CH3 ->[H2/Ni][\Delta] \phantom{..}?}\end{array}\]
Draw structure of the following derivative:
Acetaldehydedimethylacetal
Give an example of the reaction in the following case.
Imine
