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प्रश्न
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
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उत्तर
1 -Bromo-2,2-dimethylpropane
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संबंधित प्रश्न
Discuss the mechanism of alkaline hydrolysis of bromomethane.
Write the structure of an isomer of compound C4H9Br which is most reactive towards SN1 reaction
Write the main products when methyl chloride is treated with AgCN.
Which alkyl halide from the following pair would you expect to react more rapidly by an SN2 mechanism? Explain your answer.
CH3CH2CH2CH2Br or \[\begin{array}{cc}
\ce{CH3CH2CHCH3}\\
\phantom{...}|\\
\phantom{....}\ce{Br}\
\end{array}\]
What are ambident nucleophiles? Explain with an example.
How will you bring about the following conversion?
Toluene to benzyl alcohol
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.
Answer the following question.
Write one stereochemical difference between SN1 and SN2 reactions.
Arrange the following organic compounds in descending order of their reactivity towards SN1 reaction.
C6H5CH2Br, C6H5CH(C6H5)Br, C6H5CH(CH3)Br, C6H5C(CH3)(C6H5)Br
Which of the following reactions is an example of nucleophilic substitution reaction?
Which one is most reactive towards SN1 reaction?
In the SN1 reaction, racemization takes place. It is due to:
Identify the end product (C) in the following sequence:
\[\ce{C2H5OH ->[SOCl2][Pyridine] A ->[KCN {(alc.)}] B ->[2H2O/H^+] C}\]
A primary alkyl halide would prefer to undergo ______.
Which of the following statements are correct about this reaction?
(i) The given reaction follows SN2 mechanism.
(ii) (b) and (d) have opposite configuration.
(iii) (b) and (d) have same configuration.
(iv) The given reaction follows SN1 mechanism.
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.
Which of the compounds will react faster in SN1 reaction with the –OH ion?
\[\ce{CH3-CH2-Cl}\] or \[\ce{C6H5-CH2-Cl}\]
Which one is the correct order of nucleophilic strength (pKa) of following nucleophiles?
CCl4 is insoluble in water because:-
The number of chiral alcohol (s) with molecular formula C4H10O is ______.
The major product formed in the following reaction is:
The decreasing order of reactivity of the following compounds towards nucleophilic substitution (SN2) is ______.
Racemisation occurs in ______.
Assertion (A) : Nucleophilic substitution of iodoethane is easier than chloroethane.
Reason (R) : Bond enthalpy of C-I bond is less than that of C-Cl bond.
Retention of configuration is observed in ______.
Acetic anhydride from acetic acid
Which alkyl halide from the following pair would you expect to react more rapidly by an SN2 mechanism? Explain your answer.
\[\begin{array}{cc}\ce{CH3CHCH2CH2Br}\\|\phantom{.........}\\\ce{CH3}\phantom{......}\end{array}\] or \[\begin{array}{cc}\ce{CH3CH2CHCH2Br}\\\phantom{}|\\\phantom{...}\ce{CH3}\end{array}\]
Which one of the following chlorohydrocarbons readily undergoes solvolysis?
Which of the following is halogen exchange reaction?
