English
Karnataka Board PUCPUC Science 2nd PUC Class 12

What is meant by the following term? Give an example of the reaction in the following case. Semicarbazone - Chemistry

Advertisements
Advertisements

Question

What is meant by the following term? Give an example of the reaction in the following case.

Semicarbazone

Chemical Equations/Structures
One Line Answer
Advertisements

Solution

Semicarbazones are derivatives of aldehydes and ketones produced by the condensation reaction between a ketone or aldehyde and semicarbazide.

shaalaa.com
  Is there an error in this question or solution?
Chapter 8: Aldehydes, Ketones and Carboxylic Acids - Exercises [Page 255]

APPEARS IN

NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 8 Aldehydes, Ketones and Carboxylic Acids
Exercises | Q 8.1 (iii) | Page 255

RELATED QUESTIONS

How are the following compounds prepared?

benzaldehyde from benzene


Arrange the following in the increasing order of their reactivity towards nucleophilic addition reaction:

C6H5COCH3, CH3-CHO, CH3COCH3


Write the products formed when CH3CHO reacts with the following reagents : H2N – OH


Predict the product of the following reaction:


Predict the product of the following reaction:

\[\begin{array}{cc}
\phantom{..............}\ce{O}\\
\phantom{..............}||\\
\ce{R - CH = CH - CHO + NH2 - C - NH - NH2 ->[H+]}\end{array}\]


What is meant by the following term? Give an example of the reaction in the following case.

Oxime


Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents.

Semicarbazide and weak acid


Complete the synthesis by giving missing starting material, reagent or product.

\[\ce{C6H5CHO ->[H2NCONHNH2]}\]


Complete the synthesis by giving missing starting material, reagent or product.


Which among the following is most reactive to give nucleophilic addition?


What is the action of sodium hypoiodite on acetone?


Which will undergo faster nucleophilic addition reaction?

Acetaldehyde or Propanone


The product "P" in the above reaction is:


The increasing order of the following compounds towards HCN addition is:

(i)
(ii)
(iii)
(iv)

Draw structure of the following derivative.

Acetaldehydedimethylacetal


Draw the structure of the following derivative.

The ethylene ketal of hexan-3-one


Draw structure of the following derivative:

Acetaldehydedimethylacetal


Draw structures of the following derivatives.

Acetaldehydedimethylacetal


Draw the structure of the given derivative.

The ethylene ketal of hexan-3-one


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×