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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
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उत्तर
(C) Ammoniacal silver nitrate
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संबंधित प्रश्न
Arrange the following in the increasing order of their reactivity towards nucleophilic addition reaction:
C6H5COCH3, CH3-CHO, CH3COCH3
Predict the products of the following reactions:
Draw the structure of the semicarbazone of ethanal.
Predict the product of the following reaction:
What is meant by the following term? Give an example of the reaction in the following case.
Semicarbazone
What is meant by the following term? Give an example of the reaction in the following case.
Schiff’s base
Give plausible explanation for the following:
Cyclohexanone forms cyanohydrin in good yield but 2, 2, 6 trimethylcyclohexanone does not.
Give plausible explanation for the following:
There are two −NH2 groups in semicarbazide. However, only one is involved in the formation of semicarbazones.
Complete the synthesis by giving missing starting material, reagent or product.
\[\ce{C6H5CHO ->[H2NCONHNH2]}\]
How are the following compounds prepared?
acetophenone from benzene
How are the following compounds prepared?
benzaldehyde from benzoyl chloride
Write balanced chemical equations for action of ammonia on - acetone
Write balanced chemical equations for action of ammonia on - acetone
Write the main product formed when propanal reacts with the following reagents:
H2N- NH2 followed by heating with KOH in ethylene glycol.
Which of the following has the most acidic hydrogen?
Grignard reagent on reaction with acetone forms.
What happens when propanone is treated with CH3MgBr and then hydrolysed?
Which will undergo faster nucleophilic addition reaction?
Acetaldehyde or Propanone
Draw the structure of the following derivative.
The ethylene ketal of hexane-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 the structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw structures of the following derivatives.
Acetaldehydedimethylacetal
Draw the structure of the following derivative.
Acetaldehydedimethylacetal
Draw structure of the following derivative.
The ethylene ketal of hexan-3-one
Which of the following will not be formed when calcium formate is distilled with calcium acetate?
