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प्रश्न
Cyanide ion acts as an ambident nucleophile. From which end it acts as a stronger nucleophile in aqueous medium? Give reason for your answer.
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उत्तर
It acts as a stronger nucleophile from the carbon end because it will lead to the formation of C – C bond which is more stable (bond between two similar atoms) than C – N bond.
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संबंधित प्रश्न
Write the major products(s) in the following:
Given reasons: C–Cl bond length in chlorobenzene is shorter than C–Cl bond length in CH3–Cl.
What are ambident nucleophiles? Explain with an example.
How will you bring about the following conversion?
Toluene to benzyl alcohol
Write the mechanism of the following reaction:
\[\ce{{n}BuBr + KCN ->[EtOH-H2O] {n}BuCN}\]
In a coordination entity of the type [PtCl2(en)2]2+ which isomer will show optical isomerism?
Which of the following is a primary halide?
Most reactive halide towards SN1 reaction is ____________.
In the SN1 reaction, racemization takes place. It is due to:
Racemic compound has ____________.
Which of the following compound will undergo racemisation when reacts with aq. KOH?
(i)
(ii)
CH3CH2CH2Cl
(iii)
\[\begin{array}{cc}
\ce{CH3}\phantom{..}\\
|\phantom{....}\\
\ce{CH3-CH-CH2Cl}
\end{array}\]
(iv)
\[\begin{array}{cc}
\phantom{..}\ce{H}\\
\phantom{..}|\\
\ce{CH3-C-Cl}\\
\phantom{..}|\\
\phantom{.....}\ce{C2H5}
\end{array}\]
Assertion: KCN reacts with methyl chloride to give methyl isocyanide.
Reason: CN– is an ambident nucleophile.
Elimination reactions (especially β-elimination) are as common as the nucleophilic substitution reaction in case of alkyl halides. Specify the reagents used in both cases.
Which of the following is the definition of chirality?
The major product formed in the following reaction is:
Inversion of configuration occurs in ______.
Convert bromoethane to propanamine.
The compound that will undergo SN1 reaction with the fastest rate is:
