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प्रश्न
What is the action of the following on ethyl bromide
alcoholic solution of potassium hydroxide.
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उत्तर
\[\ce{\underset{\text{ethylbromide}}{C2H5Br} + alc KOH ->\underset{\text{ethene}}{CH2} = CH2 + KBr + H2O}\]
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संबंधित प्रश्न
In the following pair of halogen compounds, which compound undergoes a faster SN1 reaction?
Write the structure of the major organic product in the following reaction:
\[\ce{CH3CH2Br + KCN ->[aq.ethanol]}\]
Write the mechanism of the following reaction:
\[\ce{{n}BuBr + KCN ->[EtOH-H2O] {n}BuCN}\]
Arrange the compounds of the following set in order of reactivity towards SN2 displacement:
1-Bromo-3-methylbutane, 2-Bromo-2-methylbutane, 2-Bromo-3-methylbutane
The treatment of alkyl chlorides with aqueous KOH leads to the formation of alcohols but in the presence of alcoholic KOH, alkenes are major products. Explain.
What happens when ethyl chloride is treated with aqueous KOH?
What happens when methyl chloride is treated with KCN?
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
AgCN reacts with haloalkanes to form isocyanide. Haloalkanes react with KCN to form alkyl cyanides as the main product. Why?
In the reaction, \[\ce{R - X + NaOR' -> ROR’ + X}\] ( – ve ion). The main product formed is:
Which compound in the following pair reacts faster in SN2 reaction with OH–?
- CH3Br or CH3
- CH3Cl, (CH3)3CCl
Which of the following is a primary halide?
Halogenation of alkanes is ____________.
Optically active isomers but not mirror images are called ____________.
SN2 mechanism proceeds through intervention of ____________.
Which among MeX, RCH2X, R2CHX and R3CX is most reactive towards SN2 reaction?
Which of the following is an optically active compound?
The process of separation of a racemic modification into d and l-enantiomers is called ____________.
Which of the following alkyl halides will undergo SN1 reaction most readily?
Assertion: KCN reacts with methyl chloride to give methyl isocyanide.
Reason: CN– is an ambident nucleophile.
Write the structures and names of the compounds formed when compound ‘A’ with molecular formula, \[\ce{C7H8}\] is treated with \[\ce{Cl2}\] in the presence of \[\ce{FeCl3}\].
Chlorination of alkanes is an example of
Which one of the following compounds is more reactive towards SN1 reaction?
The major product formed in the following reaction is:
In SN1 reactions, the correct order of reactivity for the following compounds:
CH3Cl, CH3CH2Cl, (CH3)2CHCl and (CH3)3CCl is ______.
Racemisation occurs in ______.
Acetic anhydride from acetic acid
Explain why Grignard reagents should be prepared under anhydrous conditions.
