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What is the action of following on proponal? Hydrazine - Chemistry

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प्रश्न

What is the action of following on proponal?

Hydrazine

टीपा लिहा

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

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

संबंधित प्रश्‍न

Answer in brief.

Formic acid is stronger than acetic acid. Explain.


Arrange the following carboxylic acids with increasing order of their acidic strength and justify your answer.

1) 

2)

3)


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 the preparation reactions for acid amide from the following.

Carboxylic acid


Write the preparation reactions for acid amide from the following.

Acid chloride


Write reactions for the following conversions.

4-Nitrobenzoic acid to Nitrobenzene


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

CH4


Explain the acidic nature of carboxylic acids.


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

Ethane-1,2-diol in presence of dry HCl.


Complete the following sequence of reactions and write structures for A, B, C.

\[\ce{Dry ice ->[i. Dry ether][ii. Hydrolysis] A ->[PCl5] B ->[H2(gas)][Pd - BaSO4] C}\]


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 ____________.


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


Which is the gas evolved when carboxylic acids react with strongly electropositive metals (such as Na, K, Ca, Zn)?


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


In the following reaction:

The product X is:


A flavouring agent found in oil of wintergreen is ______.


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 ____________.


Which of the following compounds is obtained when ethanoic anhydride is treated with water?


Which of the following carboxylic acids ha highest acidic strength?


Write structure of adipic acid.


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?


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