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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


What is the action of following on proponal?

Hydroxyl amine


What is the action of following on proponal?

Hydrazine


Write reactions for the following conversions.

4-Nitrobenzoic acid to Nitrobenzene


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

CH3COCl


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)?


The product of the reaction between dialkyl cadmium and acyl chloride is a/an ____________.


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?


Which among the following is the strongest acid?


The oxidation number of B in NaBH4 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.


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.


Identify 'A', 'B' and 'C' in following chain reaction and rewrite the chemical reactions:
\[\ce{CH3CH2OH ->[red 'P'][Br2] A ->[KCN][alc] B ->[LiAlH4][Ether] C}\]

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


Which among the following is the strongest acid?


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