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Write Balanced Chemical Equations for Action of Ammonia on - Acetone - Chemistry

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प्रश्न

Write balanced chemical equations for action of ammonia on - acetone

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उत्तर

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2013-2014 (October)

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संबंधित प्रश्न

Write balanced chemical equations for action of ammonia on - formaldehyde


Predict the products of the following reactions:

 


Draw the structure of the semicarbazone of ethanal.


Predict the product of the following reaction:


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.

Ketal


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

Semicarbazide and weak acid


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

Excess ethanol and acid


Give plausible explanation for the following:

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


How are the following compounds prepared?

benzaldehyde from benzoyl chloride


Write balanced chemical equations for action of ammonia on - acetone


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. 


Which of the following compounds is most reactive towards nucleophilic addition reactions?


Which of the following is the correct representation for intermediate of nucleophilic addition reaction to the given carbonyl compound (A):

(i)  

(ii)  

(iii)  

(iv) 


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


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


Grignard reagent on reaction with acetone forms.


The most stable reagent for the conversion of R – CH2OH → RCHO is


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)

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 the structure 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


Draw structures of the following derivatives.

Acetaldehydedimethylacetal


Draw the structure of the given derivative.

The ethylene ketal of hexan-3-one


Give an example of the reaction in the following case.

Oxime


Give an example of the reaction in the following case.

Imine


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