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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

What is the action of the following regent on propanal? Sodium Bisulphite

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प्रश्न

What is the action of the following regent on propanal?

Sodium Bisulphite

थोडक्यात उत्तर
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उत्तर

\[\begin{array}{cc}
\phantom{.....}\ce{O}\phantom{.......................................}\ce{OH}\\
\phantom{...}||\phantom{........................................}|\\
\ce{\underset{Propanal}{CH2 - CH2} - C - H + \underset{Sodium Bisulphite}{NaHSO3} -> H3C - CH2 - C - SO3Na^+}\\
\phantom{............................................}|\\
\phantom{............................................}\ce{H}\end{array}\]

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पाठ 12: Aldehydes, Ketones and Carboxylic acids - Short answer questions (Type-II)

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
पाठ 12 Aldehydes, Ketones and Carboxylic acids
Short answer questions (Type-II) | Q 5.2

संबंधित प्रश्‍न

Benzaldehyde does NOT show positive test with ______.


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


Explain haloform reaction with suitable example.


Write reactions for the action of the following reagents on p-chlorobenzaldehyde.

Phenyl hydrazine


Identify the INCORRECT reaction.


ln which of the following reactions, both oxidised and reduced forms of the same compound are obtained?


Which of following is not a property of red phosphorus?


\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]

Reaction is called ____________.


Which of the following represents the structure of isopropyl methyl ketone?


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?


Reaction of acetone with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:


\[\ce{CH2 = CH2 ->[i) O3][ii) Zn/H2O] X ->[NH3] Y}\] ‘Y’ is:


Which of the following represents the correct order of acidity in the given compounds.


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


Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.


What is the action of HCN on 2, 4-dichlorobenzaldehyde?


How will you prepare lactic acid from ethanol?


How will you prepare acetophenone from acetyl chloride?


How will you prepare acetaldehyde from ethyne?


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


Which of the following compounds will undergo self-aldol condensation in the presence of cold dilute alkali?


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 ______.


In the above reaction, product (B) is:


Which of the following compounds does not undergo a haloform reaction?


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?


Write the structure of the products obtained from the following ketones by action of hydrazine in presence of a slightly acidic medium.




Write the structure of the products obtained from the following ketones by action of hydrazine in presence of strong base KOH.


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