90890
(I) (II) (III) (IV) Write decreasing order of $S_{N} 2$ reaction?
1 I $>$ II $>$ III $>$ IV
2 II $>$ I $>$ III $>$ IV
3 IV $>$ III $>$ II $>$ I
4 IV $>$ III $>$ I $>$ II
Explanation:
Rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction $\alpha-\mathrm{I}-$ effect $-\mathrm{M}-\mathrm{effect} \alpha \frac{1}{\text { Steric Crowding }}$ I. \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}\) II. \(\mathrm{Ph}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}\) III. IV. Thus, rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction is II $>\mathrm{I}>\mathrm{III}>\mathrm{IV}$.
**[AIIMS-27 May
HALOALKANES AND HALOARENES
90891
1
2
3
4
Explanation:
2018 (E)]**
HALOALKANES AND HALOARENES
90892
1
2
3
4
Explanation:
In $\mathrm{S}_{\mathrm{N}} 2$ reaction, the alcohol formed have opposite configuration to that of alkylhalide. This change in configuration is called Walden's inversion
2018 (M)]**
HALOALKANES AND HALOARENES
90903
What is $Z$ in the following sequence of reaction?
1 Propane
2 2-methyl propene
3 2-methyl propane
4 2-methyl butane
Explanation:
In the following sequence $(Z)$ is 2-methyl propane.
90890
(I) (II) (III) (IV) Write decreasing order of $S_{N} 2$ reaction?
1 I $>$ II $>$ III $>$ IV
2 II $>$ I $>$ III $>$ IV
3 IV $>$ III $>$ II $>$ I
4 IV $>$ III $>$ I $>$ II
Explanation:
Rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction $\alpha-\mathrm{I}-$ effect $-\mathrm{M}-\mathrm{effect} \alpha \frac{1}{\text { Steric Crowding }}$ I. \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}\) II. \(\mathrm{Ph}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}\) III. IV. Thus, rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction is II $>\mathrm{I}>\mathrm{III}>\mathrm{IV}$.
**[AIIMS-27 May
HALOALKANES AND HALOARENES
90891
1
2
3
4
Explanation:
2018 (E)]**
HALOALKANES AND HALOARENES
90892
1
2
3
4
Explanation:
In $\mathrm{S}_{\mathrm{N}} 2$ reaction, the alcohol formed have opposite configuration to that of alkylhalide. This change in configuration is called Walden's inversion
2018 (M)]**
HALOALKANES AND HALOARENES
90903
What is $Z$ in the following sequence of reaction?
1 Propane
2 2-methyl propene
3 2-methyl propane
4 2-methyl butane
Explanation:
In the following sequence $(Z)$ is 2-methyl propane.
90890
(I) (II) (III) (IV) Write decreasing order of $S_{N} 2$ reaction?
1 I $>$ II $>$ III $>$ IV
2 II $>$ I $>$ III $>$ IV
3 IV $>$ III $>$ II $>$ I
4 IV $>$ III $>$ I $>$ II
Explanation:
Rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction $\alpha-\mathrm{I}-$ effect $-\mathrm{M}-\mathrm{effect} \alpha \frac{1}{\text { Steric Crowding }}$ I. \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}\) II. \(\mathrm{Ph}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}\) III. IV. Thus, rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction is II $>\mathrm{I}>\mathrm{III}>\mathrm{IV}$.
**[AIIMS-27 May
HALOALKANES AND HALOARENES
90891
1
2
3
4
Explanation:
2018 (E)]**
HALOALKANES AND HALOARENES
90892
1
2
3
4
Explanation:
In $\mathrm{S}_{\mathrm{N}} 2$ reaction, the alcohol formed have opposite configuration to that of alkylhalide. This change in configuration is called Walden's inversion
2018 (M)]**
HALOALKANES AND HALOARENES
90903
What is $Z$ in the following sequence of reaction?
1 Propane
2 2-methyl propene
3 2-methyl propane
4 2-methyl butane
Explanation:
In the following sequence $(Z)$ is 2-methyl propane.
90890
(I) (II) (III) (IV) Write decreasing order of $S_{N} 2$ reaction?
1 I $>$ II $>$ III $>$ IV
2 II $>$ I $>$ III $>$ IV
3 IV $>$ III $>$ II $>$ I
4 IV $>$ III $>$ I $>$ II
Explanation:
Rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction $\alpha-\mathrm{I}-$ effect $-\mathrm{M}-\mathrm{effect} \alpha \frac{1}{\text { Steric Crowding }}$ I. \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}\) II. \(\mathrm{Ph}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Cl}\) III. IV. Thus, rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction is II $>\mathrm{I}>\mathrm{III}>\mathrm{IV}$.
**[AIIMS-27 May
HALOALKANES AND HALOARENES
90891
1
2
3
4
Explanation:
2018 (E)]**
HALOALKANES AND HALOARENES
90892
1
2
3
4
Explanation:
In $\mathrm{S}_{\mathrm{N}} 2$ reaction, the alcohol formed have opposite configuration to that of alkylhalide. This change in configuration is called Walden's inversion
2018 (M)]**
HALOALKANES AND HALOARENES
90903
What is $Z$ in the following sequence of reaction?
1 Propane
2 2-methyl propene
3 2-methyl propane
4 2-methyl butane
Explanation:
In the following sequence $(Z)$ is 2-methyl propane.
