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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

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

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प्रश्न

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

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उत्तर

2, 4 - Dinitrophenyl hydrazone is formed when acetone is treated with 2, 4- dinitrophenyl hydrazine.

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2021-2022 (March) Set 1

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

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

C6H5COCH3, CH3-CHO, CH3COCH3


Predict the products of the following reactions:

 


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.


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

Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone.

Hint: Consider steric effect and electronic effect.


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

Semicarbazone


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


Give plausible explanation for the following:

There are two −NH2 groups in semicarbazide. However, only one is involved in the formation of semicarbazones.


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


Write balanced chemical equations for action of ammonia on - acetone


What is the action of the following reagents on ethanoic acid?

1) `LiAlH_4"/"H_3O^+`

2) `PCl_3 , "heat"`

3) `P_2O_5, "heat"`


Write the main product formed when propanal reacts with the following reagents: 
H2N- NH2  followed by heating with KOH in ethylene glycol.


Write a test to differentiate between pentan-2-one and pentan-3-one.


Alkenes   and carbonyl compounds , both contain a π bond but alkenes show electrophilic addition reactions whereas carbonyl compounds show nucleophilic addition reactions. Explain.


Carboxylic acids contain carbonyl group but do not show the nucleophilic addition reaction like aldehydes or ketones. Why?


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

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


Reaction of aqueous sodium hydroxide on chlorobenzene gives which of the following products?


Which one of the following gives only one monochloro derivative?


Grignard reagent on reaction with acetone forms.


Acetaldehyde and acetone differ in their reaction with


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


Draw structures of the given derivatives.

The ethylene ketal of hexan-3-one


Draw structure of the following derivative.

The ethylene ketal of hexane-3-one


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 structure of the following derivative.

The ethylene ketal of hexan-3-one


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