Reaction of Alcohols with SOCl2

Q. Which of the following leads to the formation of an alkyl halide?

1. $C_2{H}_{5}OH\stackrel{PC{l}_5}{\to }$
2. $C_2{H}_{5}OH\stackrel{SOC{l}_2}{\to }$
3. $C_2{H}_{5}OH\stackrel{PC{l}_3}{\to }$
4. All

Q. Which one of the following solvent(s) favors $S_{N}2$ reaction?

1. $DMSO$
2. Ethanol
3. Acetone
4. Water

Q. When $C{H}_{3}C{H}_{2}Br$ is treated with aqueous NaCN, $C{H}_{3}C{H}_{2}CN$ is formed while $C{H}_{3}C{H}_{2}NC$ is formed when AgCN is used in the similar reaction. It is due to

1. Ionic nature of $C-N$ bond in $NaCN$
2. Covalent nature of $Ag-C$ bond in $AgCN$
3. Covalent nature of $C-N$ bond in $NaCN$
4. Ionic nature of $Ag-C$ bond in $AgCN$

Q. Consider the following substitution reaction,

Which of the following statement(s) is/are true?

1. Reaction occur at much faster rate than when substrate is 2-bromo-3, 3-dimethylpentane
2. It will follow $S_{N}2$ reaction mechanism
3. Reaction occurs with inversion of configuration
4. Both (a) and (c)

Q. Select the correct options with respect to the reaction of cis-3-methylcyclopentanol with $SOC{l}_2$:

1. The reaction is $S_{N}1$
2. The reaction is $S_{N}2$
3. The reaction is an intramolecular nucleophilic substitution
4. The reaction is $E_{1}cB$

Q. Which nuclepphic substitution reaction mechanisms result the product with retention type of configuration?

Q. Which of the following can not be the product of this reaction?

1. 1
2. 2
3. 3
4. 4

Q. $S_{N}1$ & $S_{N}2$ is not favourable in:

1. $H_{2}C=CH-Cl$
2. $Ph-Cl$
3. $Ph-C{h}_2-Cl$
4. $H_{2}C=CH-C{H}_2-Cl$

Q. (i) $B_2{H}_6,THF$
(ii) $H_2{O}_2,NaOH$

Q. ${CH}_3{CH}_{2}Br$ or ${CH}_3{CH}_{2}I$ with $NaOH$ in acetone.

1. None of these
2. ${CH}_3{CH}_{2}I>{CH}_3{CH}_{2}Br$
3. ${CH}_3{CH}_{2}I<{CH}_3{CH}_{2}Br$
4. ${CH}_3{CH}_{2}I={CH}_3{CH}_{2}Br$

Q. In which one of the following reagents $O-H$ bond fission in alcohol can not take place?

1. $C{H}_{3}COOH$
2. Na
3. $C{H}_{3}MgBr$
4. $PC{l}_5$

Q. Select the correct options with respect to the reaction of cis-3-methylcyclopentanol with $SOC{l}_2$:

1. The reaction is $S_{N}1$
2. The reaction is $S_{N}2$
3. The reaction is an intramolecular nucleophilic substitution
4. The reaction is $E_{1}cB$

Q. Select the correct options with respect to the reaction of cis-3-methylcyclopentanol with $SOC{l}_2$:

1. The reaction is $S_{N}1$
2. The reaction is $S_{N}2$
3. The reaction is an intramolecular nucleophilic substitution
4. The reaction is $E_{1}cB$

Q. Which of the following is least reactive in a nucleophilic substitution reaction?

1. $C{H}_2=CHCl$
2. $C{H}_2=CHC{H}_{2}Cl$
3. $C{H}_{3}C{H}_{2}Cl$
4. $(CH3{)}_{3}C-Cl$

Q. Select the correct options with respect to the reaction of cis-3-methylcyclopentanol with $SOC{l}_2$:

1. The reaction is $S_{N}1$
2. The reaction is $S_{N}2$
3. The reaction is an intramolecular nucleophilic substitution
4. The reaction is $E_{1}cB$