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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

What is the action of following on proponal? Hydrazine

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प्रश्न

What is the action of following on proponal?

Hydrazine

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उत्तर

Propanal will undergo an addition elimination reaction with hydrazine to give corresponding hydrazone derivative containing C = N bond (imine).

\[\begin{array}{cc}
\phantom{}\ce{H}\phantom{....................................}\ce{H}\phantom{.......}\\
\phantom{}|\phantom{.....................................}|\phantom{........}\\
\ce{\underset{\text{Propanal}}{H3CH2C - C = O} + \underset{\text{Hydrazine}}{H2N - NH2}->\underset{\text{Hydrazone derivative}}{H3CH2C - C = N - NH2} + H2O}
\end{array}\]

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

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

संबंधित प्रश्‍न

Write the structure of the product formed when carboxylic acid is heated with a dehydrating agent like P2O5


What is the action of following on proponal?

Hydroxyl amine


Write reactions for the following conversions.

Propanone to Propane


Write chemical reactions to convert –COOH group of acetic acid into the following.

CH4


Write chemical reactions to convert –COOH group of acetic acid into the following.

CH3COCl


Write reaction for preparation of acetophenone from benzoyl chloride.


Explain the acidic nature of carboxylic acids.


In the reaction,

\[\ce{CH3COOH ->[SOCl2] X ->[Sodium salt of carboxylic acid] Y}\].

The compound Y was found to be a mixed acid anhydride. Thus, the sodium salt of carboxylic acid used CANNOT be ____________.


Which of the following compounds reacts with ammonia to form urotropine?


In the reaction, \[\ce{C6H5COCH3 ->[{[H]}][Zn-Hg/conc. HCl] X}\], X is ______.


Which of following elements does not form amide when reacted with ammonia?


Products in the following reaction are:

\[\ce{CH3COOH + PCl3 ->[\Delta]}\]


Which of the following carboxylic acids will have the highest acidity?


The elimination of CO2 from a carboxylic acid is known as ____________.


What amount of dinitrogen contains 3.6 × 1018 molecules?


The reducing agent preferred to convert carboxylic acids and esters to primary alcohols is ____________.


The oxidation number of B in NaBH4 is ____________.


Which of the following aromatic acids has less acidic strength than benzoic acid?


Which of the following functional groups is reduced by diborane?


Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C?


Excess of ammonia with sodium hypochloride solution in the presence of glue or gelatine gives ______.


The number of bonding pairs and lone pairs of electrons present in the central atom of ammonia molecular are respectively.


Draw structures 01 conjugate bases of monochloroacetic acid and dichloroacetic acid. Which one is more stabilized by -I effect?


How sodium bicarbonate test is used to distinguish between carboxylic acid and phenol?


How will you prepare Acetic anhydride from acetic acid?


Which of the following can not be oxidised to give carboxylic acid?


Which among the following is the strongest acid?


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