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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Write the reducing agent which CANNOT reduce –COOH group.

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प्रश्न

Write the reducing agent which CANNOT reduce –COOH group.

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उत्तर

Sodium borohydride (NaBH4) does not reduce –COOH group.

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

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एससीईआरटी महाराष्ट्र Chemistry [English] Standard 12 Maharashtra State Board
पाठ 12 Aldehydes, Ketones and Carboxylic acids
Very Short Answer Questions | Q 7

संबंधित प्रश्‍न

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


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


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

C2H5OH


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.


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 ____________.


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 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?


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


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


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


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


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


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


Identify the product ‘B’ in the following sequence of reactions.

\[\ce{\underset{}{Methylpropanoate} ->[Δ][dil. NaOH] \underset{\underset{}{}}{A}->[H+][Conc. HCl] \underset{\underset{}{}}{B}}\]


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


Which among the following is the strongest acid?


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