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

What happens when ethyl chloride is treated with aqueous KOH?

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प्रश्न

What happens when ethyl chloride is treated with aqueous KOH?

लघु उत्तर
अति संक्षिप्त उत्तर
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उत्तर १

\[\ce{CH3 - CH2 - Cl ->[KOH/H2O]\underset{(S_N2 reaction)}{CH3 - CH2 - OH}}\]

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उत्तर २

When ethyl chloride is treated with aqueous KOH, it undergoes dehydrohalogenation, which eliminates hydrogen and halogen atoms from nearby carbon atoms, resulting in the production of an alcohol.

\[\ce{\underset{Ethyl chloride}{CH3 - CH2 - Cl} + KOH_{(aq)} ->[hydrolysis][\Delta] \underset{Ethyl alcohol}{CH3 - CH2 - OH} + KCl}\]

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Haloalkanes and Haloarenes - Exercises [पृष्ठ १९१]

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एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
पाठ 6 Haloalkanes and Haloarenes
Exercises | Q 6.22 (iv) | पृष्ठ १९१

संबंधित प्रश्‍न

Out of , which is more reactive towards SN1 reaction and why?


Write the structure of the major product in each of the following reaction :


Which compound in the following pair will react faster in SN2 reaction with OH?

CH3Br or CH3I


Write the mechanism of the following reaction:

\[\ce{{n}BuBr + KCN ->[EtOH-H2O] {n}BuCN}\]


What happens when chlorobenzene is subjected to hydrolysis?


Which of the following is optically inactive?


Which of the following is an example of SN2 reaction?


Which of the following is a primary halide?


Identify X and Y in the following sequence:

\[\ce{C2H5Br ->[X] Product ->[Y] C3H7NH2}\]


Which of the following compounds will give a racemic mixture on nucleophilic substitution by OH ion?

1-Bromoethane, 1-Bromopropane, 1-Bromobutane, Bromobenzene


Assertion: KCN reacts with methyl chloride to give methyl isocyanide.

Reason: CN is an ambident nucleophile.


Ethylene chloride and ethylidene chloride are isomers. Identify the correct statements.

(i) Both the compounds form same product on treatment with alcoholic KOH.

(ii) Both the compounds form same product on treatment with aq.NaOH.

(iii) Both the compounds form same product on reduction.

(iv) Both the compounds are optically active.


Aryl halides are extremely less reactive towards nucleophilic substitution. Predict and explain the order of reactivity of the following compounds towards nucleophilic substitution:

(I)
(II)
(III)

When CH3CH2CHCl2 is treated NaNH2 product formed is:-


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 decreasing order of reactivity of the following compounds towards nucleophilic substitution (SN2) is ______.






Which alkyl halide from the following pair would you expect to react more rapidly by an SN2 mechanism? Explain your answer.

\[\begin{array}{cc}\ce{CH3CH2CHCH3}\\
\phantom{.....}|\\
\phantom{......}\ce{Br}\\
\end{array}\] or \[\begin{array}{cc}\phantom{.......}\ce{CH3}\\
\phantom{...}|\\
\ce{H3C - C - Br}\\
\phantom{...}|\\
\phantom{.......}\ce{CH3}\\
\end{array}\]


Which of the following is halogen exchange reaction?


Assertion (A): undergoes SN2 reactions faster than .

Reason (R): Iodine is a better leaving group because of its large size.

In the light of the above statements, choose the correct answer from the options given below:


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