Related InterviewSolutions

• The structure of the major product formed in the following reaction is: A. B. C. D.
• `CH_(3)Br +Nu^(Theta) rarr CH_(3)-Nu +Br^(Theta)` The decreasing order of the rate of the above reaction with nucleophiles `Nu^(Theta) A` to `D` is- `[Nbar(u) =(A) phO^(-), (B) AcO^(-), (C)H bar(O),(D) CH_(3)bar(O)]`A. `D gt C gt A gt B`B. `D gt C gt B gt A`C. `A gt B gt C gt D`D. `B gt D gt C gt A`
• Statement-I: Iodination of akanes is carried out by heat in presence of readucing agent. Because Statement-II: Iodination of alkanes takeplace explosively.A. Statement-I is True, Statement-II is True, Statement-II is a correct explanation for Statement-IB. Statement-I is True, Statement-II is True, Statement-II is NOT a correct explanation for Statement-IC. Statement-I is True, Statement-II is False.D. Statement-I is False, Statement-II is True.
• What is the order of reactivity of the following compounds towards nucleophilic substitution? A. `I lt II lt III lt IV`B. `IV lt III lt II lt I`C. `IV lt I lt II lt III`D. `IV lt II lt I lt III`
• The order of reactivities of the following alky halides for an `S_(N)2` reaction is .A. `RF gt RCI gt R-Br gt R-I`B. `R-F gt R-Br gt R-CI g R-I`C. `R-CI gt R-Br gt R-F gt R -I`D. `R-I gt R-Br gt R-CI gt R-F`
• Statement-I: Vinylic halides are reactive towards nucleophilic substitution reaction. Because Statement-II: Reactivity is due to the polarity of carbon-halogen bond.A. Statement-I is True, Statement-II is True, Statement-II is a correct explanation for Statement-IB. Statement-I is True, Statement-II is True, Statement-II is NOT a correct explanation for Statement-IC. Statement-I is True, Statement-II is False.D. Statement-I is False, Statement-II is True.
• Statement-I:Primay benzylic halides are more reactive than primary alkyl halides towards `S_(N^(1))` reaction. Because Statement-II: Reactivity depends upon the nature of the nucleophile and the solvent.A. Statement-I is True, Statement-II is True, Statement-II is a correct explanation for Statement-IB. Statement-I is True, Statement-II is True, Statement-II is NOT a correct explanation for Statement-IC. Statement-I is True, Statement-II is False.D. Statement-I is False, Statement-II is True.
• Of the following statements , which are true for `S_(N)2` reaction. (a) Tertiar alkyl halides reacts faster than secondary. (b) The absolute configuration of product is opposite to that of the reactant when an optically active substrate is used. (c) The used shows first order kinetics. (d) The rate of the reaction depends markedly on the nucleophilicity of the attacking reagent. (e) The mechanism is one step. (f) Carbocations are intermediate. (g) Rate `prop` [Alkyl][halides] (h) The rate of the reaction depends on the nature of the leaving group.
• Which of the following is least reactive in a nucleophilic substiution reactionA. `CH_(2)=CHCI`B. `CH_(3)CH_(2)CI`C. `CH_(2)=CHCH_(2)CI`sD. `(CH_(3))_(3)C-CI`
• Reactivity order of halides of dehydrohalogenation isA. `R -F gt R -CI gt R -Br gt R -I`B. `R -I gt R -Br gt R -CI gt R -F`C. `R -I gt R -CI gt R -Br gt R-F`sD. `R -F gt R -I gt R -Br gt R -CI`