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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Show how the following compound can be converted to benzoic acid. Bromobenzene - Chemistry

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प्रश्न

Show how the following compound can be converted to benzoic acid.

Bromobenzene

रासायनिक समीकरणे/रचना

उत्तर

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पाठ 12: Aldehydes, Ketones and Carboxylic Acids - Intext Questions [पृष्ठ ३७०]

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एनसीईआरटी Chemistry [English] Class 12
पाठ 12 Aldehydes, Ketones and Carboxylic Acids
Intext Questions | Q 7.3 | पृष्ठ ३७०

संबंधित प्रश्‍न

How is carbolic acid prepared from chlorobenzene?


Identify ‘A' and ‘B’ in the following reaction :

C6H5MgBr + C02 `(`> ‘A’   `(PCl_5)/()`> ‘B’

 


Name the reagents used in the following reactions:


Show how the following compound can be converted to benzoic acid.

Ethylbenzene


Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagent.

Tollens’ reagent


An organic compound (A) (molecular formula C8H16O2) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid produced (B). (C) on dehydration gives but-1-ene. Write equations for the reactions involved.


Complete the synthesis by giving missing starting material, reagent or product.


What is the action of following reagents on glucose?
1. Bromine water
2. Hydroxylamine


The functional group present in triacylglycerol is _______.


Which is the most suitable reagent for the following conversion?

\[\begin{array}{cc}
\phantom{....................}\ce{O}\phantom{.....................................}\ce{O}\phantom{.}\\
\phantom{....................}||\phantom{......................................}||\phantom{.}\\
\phantom{}\ce{CH3 - CH = CH - CH2 - C - CH3 -> CH3 - CH = CH - CH2 - C - OH}\phantom{.}
\end{array}\]


Through which of the following reactions number of carbon atoms can be increased in the chain?

(i) Grignard reaction

(ii) Cannizaro’s reaction

(iii) Aldol condensation

(iv) HVZ reaction


Substitution of one alkyl group by replacing hydrogen of primary amines


Benzoic acid can be obtained by the oxidation of all of the following EXCEPT ______.


The end product Y in the sequence of reaction:

\[\ce{RX ->[CN^-] X ->[NaOH] Y}\] is:


Y is:


Alkaline hydrolysis of C4H8Cl2 gives a compound (A) which on heating with NaOH and I2 produces a yellow precipitate of CHI3. The compound (A) should be ______.


Hex-4-ene-2-ol on treatment with PCC gives 'A'. 'A' on reaction with sodium hypoiodite gives 'B', which on further heating with soda lime gives 'C. The compound 'C' is ______.


Fill in the blanks by choosing the appropriate words from those given in the brackets:

[stable, low, aldehyde, unstable, 6, 4, ethane, Clemmensen’s, 2, 3, carboxylic acid, high, propane, Rosenmund's]

The primary alcohols are easily oxidised first into ______ and then into ______.


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