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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

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

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प्रश्न

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

Semicarbazone

रासायनिक समीकरण/संरचनाएँ
एक पंक्ति में उत्तर
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उत्तर

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

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 8: Aldehydes, Ketones and Carboxylic Acids - Exercises [पृष्ठ २५५]

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एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
अध्याय 8 Aldehydes, Ketones and Carboxylic Acids
Exercises | Q 8.1 (iii) | पृष्ठ २५५

संबंधित प्रश्न

Write the structures of the main products when acetone (CH3 − CO − CH3) reacts with the following reagent :

H2N − NHCONH2/H+


Arrange the following compound in increasing order of its reactivity in nucleophilic addition reactions.

Ethanal, Propanal, Propanone, Butanone.

Hint: Consider steric effect and electronic effect.


Predict the product of the following reaction:


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

2, 4-DNP-derivative


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

Excess ethanol and acid


Arrange the following compounds in increasing order of their property as indicated:

Acetaldehyde, Acetone, Di-tert-butyl ketone, Methyl tert-butyl ketone (reactivity towards HCN)


Write balanced chemical equations for action of ammonia on - acetaldehyde


What are amines?


Give a simple chemical test to distinguish between 
 


 Acetone, Acetaldehyde, Benzaldehyde, Acetophenone – reactivity towards addition of HCN. 


Which of the following has the most acidic hydrogen?


A Idol condensation will not be observed in


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


Arrange the following in the increasing order of their property indicated:

Ethanal, Propanone, Propanal, Butanone (reactivity towards nucleophilic addition)


Out of p-tolualdehyde and p-nitrobenzaldehyde, which one is more reactive towards nucleophilic addition reactions, why?


Draw structures 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 structure of the following derivative:

Acetaldehydedimethylacetal


Which of the following will not be formed when calcium formate is distilled with calcium acetate?


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