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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

Acetaldehyde, when treated with which among the following reagents does NOT undergo addition reaction?

(A) Ammonia

(B) Hydroxylamine

(C) Ammoniacal silver nitrate

(D) Semicarbazide


Predict the products of the following reactions:

 


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.

PhMgBr and then H3O+


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


Write balanced chemical equations for action of ammonia on - acetone


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


Benzaldehyde can be obtained from benzal chloride. Write reactions for obtaining benzalchloride and then benzaldehyde from it.


Identify the compounds A, B and C in the following reaction.

\[\ce{CH3 - Br ->[Mg/ether] (A) ->[(i) CO][(ii) Water] (B) ->[CH3OH/H+][Δ] (C)}\]


A Idol condensation will not be observed in


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 structures of the following derivative.

The ethylene ketal of hexan-3-one


Draw the structure of the following derivative.

The ethylene ketal of hexan-3-one


Draw structures of the following derivatives.

Acetaldehydedimethylacetal


Draw structure of the following derivative.

The ethylene ketal of hexan-3-one


Draw structure of the following derivative.

The ethylene ketal of hexan-3-one


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?


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