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Write the name of the product when ketones react with 1,2-diol in presence of dry HCl. - Chemistry

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प्रश्न

Write the name of the product when ketones react with 1,2-diol in presence of dry HCl.

एक पंक्ति में उत्तर
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उत्तर

The product obtained when ketones react with 1,2-diol in presence of dry HCl is known as cyclic ketal.

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अध्याय 12: Aldehydes, Ketones and Carboxylic acids - Very Short Answer Questions

संबंधित प्रश्न

Write another name of disproportionation reaction?


Write a reaction to distinguish acetaldehyde from acetone.


Identify A in the following reaction.

\[\ce{A + CH3MgBr ->[Ether] complex ->[H3O+] (CH3)3C - OH}\]


Compounds of general formula, are called ____________.

\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR''}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{R'}\phantom{...}\ce{OR''}\phantom{} \end{array}\]


In Clemmensen's reaction, ketone gives ____________.


Compounds of general formula, are called ____________.

\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{....}\ce{OR'}\phantom{}\\ \phantom{}\backslash\phantom{..}/\\ \ce{C}\\ \phantom{}/\phantom{..}\backslash\\ \phantom{...}\ce{H}\phantom{....}\ce{OR'}\phantom{} \end{array}\]


The number of α-H atoms in butanal is ____________.


Which of the following reagents is used to avoid further oxidation of aldehydes?


Which of the following reagents is used for the following conversion?

\[\ce{CH3 - CH = CH - CHO -> CH3 - CH = CH - CH2OH}\]


Which of the following does NOT give yellow precipitate when reacted with (NaOH + I2) mixture?


The formation of cyanohydrin from acetone is an example of ____________.


\[\ce{CH3Br ->[KNC] (A) ->[H3O^+] (B) ->[PCl5] (C)}\] product (C) is:


What is the action of HCN on ethanal?


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


How will you prepare acetic anhydride from acetic acid?


How will you prepare acetaldehyde from ethyne?


Which one of the following substituents at para-position is most effective in stabilizing the phenoxide  ion?


Which of the following compound will give positive iodoform test?


A substance C4H10O yields on oxidation a compound, C4H8O which gives an oxime and a positive iodoform test. The original substance on treatment with a conc. H2SO4 gives C4H8. The structure of the compound is ______.


Which of the following reaction does not involve either oxidation or reduction?


Aldehydes are readily oxidised to yield carboxylic acids but ketones are inert to oxidation. Which is the most likely explanation regarding this difference in reactivity?


A carbonyl compound A having molecular formula C5H10O forms crystalline precipitate with sodium bisulphate and gives positive iodoform test. A does not reduce Fehling solution. Identify A.


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


Give two examples which undergo Wolf-Kishner reduction.


Identify B in the following reaction:

\[\begin{array}{cc}
\ce{O}\phantom{........}\\
||\phantom{........}\\
\ce{\underset{(Acetone)}{CH3 - C - CH3}->[CrO3] B}
\end{array}\]


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


How will you prepare Acetic anhydride from acetic acid ?


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


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