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प्रश्न
In which reaction mechanism carbocation is formed?
विकल्प
SN1
SN2
Both SN1 and SN2
None of them
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उत्तर
SN1
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संबंधित प्रश्न
Write the structure of an isomer of compound C4H9Br which is most reactive towards SN1 reaction
Which would undergo SN2 reaction faster in the following pair and why ?
Write the structure of the major organic product in the following reaction:
\[\ce{CH3CH2CH2OH + SOCl2 ->}\]
Arrange the compounds of the following set in order of reactivity towards SN2 displacement:
2-Bromo-2-methylbutane, 1-Bromopentane, 2-Bromopentane
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
How the following conversion can be carried out?
Ethyl chloride to propanoic acid.
The stability order for carbocation is _______.
(A) 2° > 3° > 1°
(B) 3° > 2° > 1°
(C) 3° > 1° > 2°
(D) 1° > 3° > 2°
What is the action of the following on ethyl bromide
alcoholic solution of potassium hydroxide.
What is the action of the following on ethyl bromide?
silver acetate
In a coordination entity of the type [PtCl2(en)2]2+ which isomer will show optical isomerism?
In the reaction, \[\ce{R - X + NaOR' -> ROR’ + X}\] ( – ve ion). The main product formed is:
Which of the following is optically inactive?
Which one of the following halogen compounds is difficult to be hydrolysed by SN1 mechanism?
The order of reactivity of the given haloalkanes towards nucleophile is:
Most reactive halide towards SN1 reaction is ____________.
Optically active isomers but not mirror images are called ____________.
The process of separation of a racemic modification into d and l-enantiomers is called ____________.
SN1 reaction of alkyl halides lead to ___________.
The reaction of C6H5–CH=CH–CH3 with HBr produces:
Complete the following analogy:
Same molecular formula but different structures: A : : Non superimposable mirror images: B
Ethylene chloride and ethylidene chloride are isomers. Identify the correct statements.
(i) Both the compounds form same product on treatment with alcoholic KOH.
(ii) Both the compounds form same product on treatment with aq.NaOH.
(iii) Both the compounds form same product on reduction.
(iv) Both the compounds are optically active.
How do polar solvents help in the first step in SN1 mechanism?
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 one is the correct order of nucleophilic strength (pKa) of following nucleophiles?
Give reason for the following:
The product formed during SN1 reaction is a racemic mixture.
Retention of configuration is observed in ______.
Complete the reaction with the main product formed:
