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

Complete the synthesis by giving missing starting material, reagent or product. C6H5CHO ->[H2NCONHNH2] - Chemistry

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प्रश्न

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

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

रासायनिक समीकरणे/रचना
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उत्तर १

\[\begin{array}{cc}
\phantom{....................................}\ce{O}\\
\phantom{....................................}||\\
\ce{\underset{Benzaldehyde}{C6H5CHO} + \underset{Semicarbazide}{H2NCONHNH2} -> C6H5CH \underset{Benzaldehyde semicarbazide}{= NNHC - NH2} + H2O}\end{array}\]

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उत्तर २

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Aldehydes, Ketones and Carboxylic Acids - Exercises [पृष्ठ २५७]

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एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
पाठ 8 Aldehydes, Ketones and Carboxylic Acids
Exercises | Q 8.17 (iii) | पृष्ठ २५७

संबंधित प्रश्‍न

Predict the product of the following reaction:


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

Cyanohydrin


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


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 the structure of Phenylmethanamine.


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.

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


Which one of the following gives only one monochloro derivative?


Write the name of product formed, when acetone is treated with 2, 4-dinitrophenyl hydrazine.


What is the action of sodium hypoiodite on acetone?


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 structure of the following derivative.

Acetaldehydedimethylacetal


Draw structure of the following derivative.

The ethylene ketal of hexan-3-one


Draw structures 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


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