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प्रश्न
Propane nitrile can be prepared by heating ____________
विकल्प
ethyl bromide with alcoholic KCN
propyl bromide with alcoholic KCN
ethyl bromide with alcoholic AgCN
propyl bromide with alcoholic AgCN
उत्तर
ethyl bromide with alcoholic KCN
Explanation:
\[\ce{\underset{\text{Ethyl bromide}}{CH3CH2Br}->[Alc.KCN,\Delta][-H2O]\underset{\text{Propane nitrile}}{CH3CH2CN}}\]
APPEARS IN
संबंधित प्रश्न
from the following pair would undergo SN2 faster from the other?
a. CH3CH2CH2I b. CH3CH2CH2Cl
Arrange the following in the increasing order of boiling points.
- 1-Bromopropane
- 2- Bromopropane
- 1- Bromobutane
- 1-Bromo-2-methylpropane
Distinguish between SN1 and SN2 mechanism of substitution reaction.
Convert the following:
Benzyl alcohol to benzyl cyanide
Convert the following:
2-Chloropropane to propan-1-ol
Complete the following reaction sequence by writing the structural formulae of the organic compound 'A', 'B' and 'C'.
\[\ce{2-Bromobutane->[Alc.KOH]A->[][Br2]B->[][NaNH2]C}\]
Observe the following and answer the question given below.
Name the type of halogen derivative.
Observe the following and answer the question given below.
Can it react by SN1 mechanism? Justify your answer.
The following will react faster by SN1 mechanism
Explain primary benzylic halide shows higher reactivity by SN1 mechanism than other primary alkyl halide.
The least reactive towards nucleophilic addition reactions is ____________.
Nitroalkanes are obtained in laboratory from primary or secondary alkyl halides by the action of ______.
\[\ce{C6H5CH2Cl + KCN(alc) -> X + Y}\]
Compounds X and Y are ____________.
Which of the following carbocation is the most stable?
Which of the following is FALSE regarding SN2 reaction mechanism?
Write the product formed when alkyl halide reacts with silver nitrite.
The major product formed when 2-bromobutane is treated with alcoholic KOH is ______.
Complete the following reaction giving major products.
\[\begin{array}{cc}
\ce{CH3}\phantom{.......}\\
|\phantom{.........}\\
\ce{CH3 - c - CH2 - Cl ->[Na/dry ether]}\\
|\phantom{.........}\\
\ce{CH3}\phantom{.......}
\end{array}\]
Observe the following and answer the questions given below:
Name the type of halogen derivative.
Observe the following and answer the question given below:
Comment on the bond length of C-X bond in it.
Observe the following and answer the question given below:
Can react by SN1 mechanism? Justify your answer.
Discuss β - elimination reaction.
What is the action of following on ethyl bromide?
alcoholic sodium hydroxide
Complete the reaction:
\[\ce{CH3CH2Cl ->[AgCN][alc.\Delta]}\] ?
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.
\[\begin{array}{cc}
\ce{CH3}\phantom{................}\\
|\phantom{...................}\\
\ce{CH3 - C - CH2 - Cl->[Na/ dry ether]A}\\
|\phantom{...................}\\
\ce{CH3}\phantom{................}\\
\end{array}\]
Complete the following reaction giving major product.
\[\begin{array}{cc}
\ce{CH3}\phantom{................}\\
|\phantom{...................}\\
\ce{CH3 - C - CH2 - Cl ->[Na/dry ether] A}\\
|\phantom{...................}\\
\ce{CH3}\phantom{................}\\
\end{array}\]
