English

What are ketones? - Chemistry

Advertisements
Advertisements

Question

What are ketones? 

Solution

Ketones are the organic compounds in which the carbonyl group is attached to two alkyl groups or aryl groups or both alkyl and aryl groups.
General formula:


R, R′ may be an alkyl or aryl group.

shaalaa.com
  Is there an error in this question or solution?
2015-2016 (March)

APPEARS IN

RELATED QUESTIONS

How can you distinguish between propanal and propanone?


A compound used as pistachio flavour in ice cream is ___________


Answer the followiiig questions: 
Identify the compounds A, B, C and D in the given reaction:


Predict the main product of the following reactions:
\[\ce{CHO + CH_3CHO->[dil NaOH]}\]


 Write the main product formed when propanal reacts with the following reagents: 
(ii) Dilute NaOH 
`CH_3CH_2CHO + NaOH(dil)-> `


Identify the compounds A, B, C, D, E and F:  


Give balanced equations for the following reactions: 

(i) Acetaldehyde is heated with hydroiodic acid in the presence of red phosphorous.
(ii) Calcium acetate is subjected to dry distillation.
(iii) Sodium ethoxide is treated with ethyl bromide.
(iv) Benzaldehyde is treated with sodium bisulphite.


Give balanced chemical equations for the following reactions:

(1) Acetaldehyde reacts with hydrogen cyanide.
(2) Acetone reacts with phenylhydrazine.
(3) Acetic acid is treated with ethanol and a drop of conc. H2SO4.


Give one chemical test each to distinguish between the following pairs of compounds:
(1) Acetone and benzaldehyde.
(2) Phenol and benzoic acid.


In the following resonating structures A and B, the number of unshared electrons in valence shell present on oxygen respectively are ______.


Choose the most correct option.

In the Wolff-Kishner reduction, alkyl aryl ketones are reduced to alkyl benzenes. During this change, ketones are first converted into ______.


Choose the most correct option.

Aldol condensation is


Choose the most correct option.

Which one of the following has the lowest acidity?


Choose the most correct option.

Diborane reduces


Answer the following in one sentence.

What are aromatic ketones?


Which of the following is the product of reaction of ethane nitrile with Grignard reagent followed by acid hydrolysis?


What are aliphatic aldehydes?


In aliphatic ketones, carbonyl carbon is attached to ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×