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प्रश्न
Write the structure of the major organic product in the following reaction:
\[\ce{CH3CH2Br + KCN ->[aq.ethanol]}\]
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उत्तर
\[\ce{\underset{Bromoethane}{CH3CH2Br} + KCN ->[aq.ethanol][(nucleophilic substitution)] \underset{Propanenitrile}{CH3CH2CN} + KBr}\]
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.
Which would undergo SN2 reaction faster in the following pair and why ?

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

Given reasons: SN1 reactions are accompanied by racemization in optically active alkyl halides.
Which would undergo SN2 reaction faster in the following pair and why ?
CH3 – CH2 – Br and CH3 – CH2 – I
What is the action of the following on ethyl bromide
alcoholic solution of potassium hydroxide.
Which of the following is optically inactive?
Which of the following is an example of SN2 reaction?
An organic molecule necessarily shows optical activity if it ____________.
Identify X and Y in the following sequence:
\[\ce{C2H5Br ->[X] Product ->[Y] C3H7NH2}\]
The increasing order of nucleophilicity would be:
Which of the following alkyl halides will undergo SN1 reaction most readily?
Which of the following statements are correct about this reaction?

(i) The given reaction follows SN2 mechanism.
(ii) (b) and (d) have opposite configuration.
(iii) (b) and (d) have same configuration.
(iv) The given reaction follows SN1 mechanism.
Cyanide ion acts as an ambident nucleophile. From which end it acts as a stronger nucleophile in aqueous medium? Give reason for your answer.
Which of the following is the definition of chirality?
When CH3CH2CHCl2 is treated NaNH2 product formed is:-
The major product formed in the following reaction is:

Among the following compounds I - IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil. HNO3 (iii) AgNO3?
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| I | II | III | IV |
In SN1 reactions, the correct order of reactivity for the following compounds:
CH3Cl, CH3CH2Cl, (CH3)2CHCl and (CH3)3CCl is ______.
Identify the product in the following reaction: 




