Advertisements
Advertisements
प्रश्न
What is meant by the following term? Give an example of the reaction in the following case.
Acetal
Advertisements
उत्तर
Gem-dialkoxy compounds in which two alkoxy groups are present on the terminal carbon atom are called acetals. These are formed when the aldehyde reacts with two equivalents of monohydric alcohol in the presence of dry hydrogen chloride.
APPEARS IN
संबंधित प्रश्न
Write the products formed when CH3CHO reacts with the following reagents : HCN
Arrange the following compound in increasing order of its reactivity in nucleophilic addition reactions.
Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone.
Hint: Consider steric effect and electronic effect.
What is meant by the following term? Give an example of the reaction in the following case.
Ketal
What is meant by the following term? Give an example of the reaction in the following case.
Imine
How will you bring about the following conversion in not more than two steps?
Bromobenzene to 1-Phenylethanol
Complete the synthesis by giving missing starting material, reagent or product.
\[\ce{C6H5CHO ->[H2NCONHNH2]}\]
Write balanced chemical equations for action of ammonia on - acetone
Which of the following is the correct representation for intermediate of nucleophilic addition reaction to the given carbonyl compound (A):
(i) 
(ii) 
(iii) 
(iv) 
Write a test to differentiate between pentan-2-one and pentan-3-one.
The pH of blood does not appreciably change by a small addition of acid or base because
Grignard reagent on reaction with acetone forms.
Arrange the following in the increasing order of their property indicated:
Ethanal, Propanone, Propanal, Butanone (reactivity towards nucleophilic addition)
The product "P" in the above reaction is:
Out of p-tolualdehyde and p-nitrobenzaldehyde, which one is more reactive towards nucleophilic addition reactions, why?
Draw structure of the following derivative.
Acetaldehydedimethylacetal
Why dissociation of HCN is suppressed by the addition of HCL?
Draw the structure of the following derivative.
Acetaldehydedimethylacetal
Give an example of the reaction in the following case.
Oxime
