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प्रश्न
What is the action of following on ethyl bromide?
alcoholic sodium hydroxide
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उत्तर
When ethyl bromide is boiled with an alcoholic solution of sodium hydroxide \[\ce{(NaOH)}\], an alkene is formed due to the elimination of hydrogen atoms from carbon and halogen from α-carbon, which is called dehydrohalogenation.
\[\ce{\underset{(Ethyl bromide)}{\overset{\beta\phantom{.............}\alpha\phantom{............}}{CH3 - CH2 - Br}} + \underset{(alc.)}{NaOH} ->[\Delta] \underset{(Ethene)}{CH2 = CH2} + NaBr + H2O}\]
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संबंधित प्रश्न
from the following pair would undergo SN2 faster from the other?
from the following pair would undergo SN2 faster from the other?
a. CH3CH2CH2I b. CH3CH2CH2Cl
Name the reagent used to bring about the following conversion.
Bromoethane to ethoxyethane
Name the reagent used to bring about the following conversion.
1-Chloropropane to 1-nitropropane
Name the reagent used to bring about the following conversion.
Ethyl bromide to ethyl isocyanide
Give reasons:
Haloarenes are less reactive than haloalkanes.
Convert the following:
Propene to propan-1-ol
Convert the following:
2-Chloropropane to propan-1-ol
Convert the following:
tert-Butyl bromide to isobutyl bromide
Complete the following reaction sequence by writing the structural formulae of the organic compound 'A', 'B' and 'C'.
\[\ce{2-Bromobutane->[Alc.KOH]A->[][Br2]B->[][NaNH2]C}\]
Explain the factors affecting SN1 and SN2 mechanism.
Explain aqueous alkaline hydrolysis of tert. butyl bromide.
Which of the following is least reactive towards nucleophilic addition?
Nitroalkanes are obtained in laboratory from primary or secondary alkyl halides by the action of ______.
How many metameric ethers are represented by the molecular formula C4H10O?
What type of hybridisation is present in carbocation formed during the alkaline hydrolysis of 1- bromo-1- phenyl ethane?
Which of the following is FALSE regarding SN2 reaction mechanism?
Identify major product 'B' in the following reaction.
\[\ce{But-1-ene ->[HBr][Peroxide] A ->[AgCN][\Delta] B}\]
The order of reactivity of the given haloalkanes towards nucleophiles is:
Observe the following and answer the questions given below:
Name the type of halogen derivative.
Complete the following reactions giving major product.
\[\begin{array}{cc}
\ce{CH3}\phantom{................}\\
|\phantom{...................}\\
\ce{CH3 - C - CH2 - Cl ->[Na/dry ether] A}\\
|\phantom{...................}\\
\ce{CH3}\phantom{.................}
\end{array}\]
Define and explain the SN1 mechanism with a suitable example.
Complete the following reaction giving major product.
\[\begin{array}{cc}
\ce{CH3}\phantom{...............}\\
|\phantom{..................}\\
\ce{CH3 - C - CH2 - Cl->[Na/dry ether]A}\\
|\phantom{..................}\\
\ce{CH3}\phantom{...............}\\
\end{array}\]
Identify the chiral molecule from the following.
Give a reason for the following:
Ethoxy ethane with conc. HI at 373 K gives C2H5OH and CH3I but not CH3OH and C2H5I.
Complete the following reaction giving major product.
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{...................}\\
\ce{CH3 - C - CH2 - Cl ->[Na/dry ether] A}\\
|\phantom{...................}\\
\ce{CH3}\phantom{.................}\\
\end{array}\]
Which of the following pair of compounds on heating gives butanenitrile?
Which among the following is NOT benzylic halide?
