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

How the following conversion can be carried out? Ethanol to propanenitrile - Chemistry

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प्रश्न

How do you convert the following:

Ethanol to propanenitrile

How the following conversion can be carried out?

Ethanol to propanenitrile

रासायनिक समीकरणे/रचना

उत्तर १

CHA3CHA2OHEthanolred P/BrA2CHA3CHA2BrBromoethaneKCN,aqethanolCHA3CHA2CNPropanenitrile

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उत्तर २

CHA3CHA2OHEthanolP/IA2,ΔCHA3CHA2IIodoethanenucleophilic substitutionKCN/EtOHHA2OCHA3CHA2CNPropanenitrile

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Notes

Students can refer to the provided solutions based on their preferred marks.

  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Haloalkanes and Haloarenes - Exercises [पृष्ठ ३१२]

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एनसीईआरटी Chemistry [English] Class 12
पाठ 10 Haloalkanes and Haloarenes
Exercises | Q 19.07 | पृष्ठ ३१२

संबंधित प्रश्‍न

 Give reasons for the following:

(CH3)3C–O–CH3 on reaction with HI gives (CH3)3C–I and CH3–OH as the main products and not (CH3)3C–OH and CH3–I.


Given reasons: C–Cl bond length in chlorobenzene is shorter than C–Cl bond length in CH3–Cl.


The stability order for carbocation is _______.

(A) 2° > 3° > 1° 

(B) 3° > 2° > 1°

(C) 3° > 1° > 2°

(D) 1° > 3° > 2°


Given reasons: The dipole moment of chlorobenzene is lower than that of cyclohexyl chloride.


Identify 'A' in the following reaction -

(a) 2- Bromo-2 methylbutane

(b) 1 -Bromo-2,2-dimethylpropane

(c) 1 - Bromo - 3 -methylbutane

(d) 1 - Bromo- 2 -methylpropane


Arrange the following organic compounds in descending order of their reactivity towards SN1 reaction.

C6H5CH2Br, C6H5CH(C6H5)Br, C6H5CH(CH3)Br, C6H5C(CH3)(C6H5)Br


Which of the following is an example of SN2 reaction?


Halogenation of alkanes is ____________.


Which one is most reactive towards SN1 reaction?


Optically active isomers but not mirror images are called ____________.


Which among MeX, RCH2X, R2CHX and R3CX is most reactive towards SN2 reaction?


2-Bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is ____________.


Among the following, the dissociation constant is highest for:


Compound ‘A’ with molecular formula CA4HA9Br is treated with aq. KOH solution. The rate of this reaction depends upon the concentration of the compound ‘A’ only. When another optically active isomer ‘B’ of this compound was treated with aq. KOH solution, the rate of reaction was found to be dependent on concentration of compound and KOH both.

(i) Write down the structural formula of both compounds ‘A’ and ‘B’.

(ii) Out of these two compounds, which one will be converted to the product with inverted configuration.


Elimination reactions (especially β-elimination) are as common as the nucleophilic substitution reaction in case of alkyl halides. Specify the reagents used in both cases.


Cyanide ion acts as an ambident nucleophile. From which end it acts as a stronger nucleophile in aqueous medium? Give reason for your answer.


In which reaction mechanism carbocation is formed?


Among the following compounds I - IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil. HNO3 (iii) AgNO3?

I II III IV

The number of chiral carbons present in the molecule given below is ______.


Inversion of configuration occurs in ______.


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