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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

What is the action of sodium hypoiodite on acetone?

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प्रश्न

What is the action of sodium hypoiodite on acetone?

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उत्तर

\[\begin{array}{cc}
\phantom{}\ce{O}\phantom{..................................................}\ce{O}\phantom{...........}\\
\phantom{}||\phantom{...................................................}||\phantom{...........}\\
\ce{\underset{(Acetone)}{H3C - C - CH3} + \underset{(Sodium hypoiodite)}{3NaOI} ->[NaOH, I2][\Delta] \underset{(lodoform)}{CHI3 ↓} + \underset{(Sodium acetate)}{H3C - C - \overset{Θ}{O}\overset{⊕}{N}a} + 2NaOH}
\end{array}\]

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2021-2022 (March) Set 1

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Write balanced chemical equations for action of ammonia on - formaldehyde


Predict the products of the following reactions:

 


Write the products formed when CH3CHO reacts with the following reagents : HCN

 


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


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.


Predict the product of the following reaction:


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

Hemiacetal


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

Schiff’s base


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

Semicarbazide and weak acid


How will you bring about the following conversion in not more than two steps?

Bromobenzene to 1-Phenylethanol


Give plausible explanation for the following:

Cyclohexanone forms cyanohydrin in good yield but 2, 2, 6 trimethylcyclohexanone does not.


Write balanced chemical equations for action of ammonia on - acetaldehyde


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


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


How will you convert benzoic acid to m-bromobenzoic acid?


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


Which of the following has the most acidic hydrogen?


A Idol condensation will not be observed in


Acetaldehyde and acetone differ in their reaction with


Paraldehyde is formed as a result of polymerisation:-


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


In the following reaction

\[\ce{Carbonyl compound + MeOH <=>[HCl] acetal}\]

Rate of the reaction is the highest for ______.


The product of following reaction is

\[\ce{CH3 - CH = CH - CH2 - CHO ->[i) LiAlH4][ii) H3O+]}\] ______?


The following questions are case-based questions. Read the passage carefully and answer the questions that follow:

The carbon-oxygen double bond is polarised in aldehydes and ketones due to higher electronegativity of oxygen relative to carbon. Therefore, they undergo nucleophilic addition reactions with a number of nucleophiles such as HCN, NaHSO3, alcohols, ammonia derivatives and Grignard reagents. Aldehydes are easily oxidised by mild oxidising agents as compared to ketones. The carbonyl group of carboxylic acid does not give reactions of aldehydes and ketones. Carboxylic acids are considerably more acidic than alcohols and most of simple phenols.

Answer the following:

(a) Write the name of the product when an aldehyde reacts with excess alcohol in the presence of dry HCl. (1)

(b) Why carboxylic acid is a stronger acid than phenol? (1)

(c) (i) Arrange the following compounds in increasing order of their reactivity towards CH3MgBr: (1)

CH3CHO, \[\begin{array}{cc}
\ce{(CH3)3C-C-CH3}\\
\phantom{....}||\\
\phantom{....}\ce{O}
\end{array}\],  \[\begin{array}{cc}
\ce{CH3-C-CH3}\\
||\\
\ce{O}
\end{array}\]

(ii) Write a chemical test to distinguish between propanal and propanone. (1)

OR

(c) Write the main product in the following: (2)

(i)
(ii)

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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


The product of the following reaction is

\[\begin{array}{cc}
\ce{O}\phantom{.........}\\
||\phantom{.........}\\
\ce{C2H5 - C - CH3 ->[H2/Ni][\Delta] \phantom{..}?}\end{array}\]


Draw structure of the following derivative:

Acetaldehydedimethylacetal


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