A compound that does not undergo S_N1 reaction with OH^- is:

1.	CH2=CH-CH2Cl	2.	(CH3)3CCl
3.		4.

\(C_6H_5CH_2Br \xrightarrow[2.~H_3O^+] {1.Mg,Ether}~\mathrm X, \)
The product 'X' in the above reaction is:
1. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OH} \)
2. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3 \)
3. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{C}_6 \mathrm{H}_5 \)
4. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OCH}_2 \mathrm{C}_6 \mathrm{H}_5\)

Which of the following compounds undergoes nucleophilic substitution reaction most easily?

1.		2.
3.		4.

Consider the reactions:

Which of the following undergoes nucleophilic substitution exclusively by S_N1 mechanism?

1. Ethyl chloride

2. Isopropyl chloride

3. Benzyl chloride

4. Chlorobenzene

The –OH group of an alcohol or the carboxylic acid can be replaced by – Cl using: 

The reactivity order of halides for dehydrohalogenation is:

1. R–F > R–Cl > R–Br > R–I

2. R–I > R–Br > R–Cl > R–F

3. R–I > R–Cl > R–Br > R–F

4. R–F > R–I > R–Br > R–Cl

Given below is a reaction sequence:
\(\begin{aligned} & CH_3CH_2Cl\xrightarrow{NaCN}X\xrightarrow{H_2/Ni}Y\\ &Y\xrightarrow{\text{Acetic Anhydride}}Z \end{aligned}\)

Z in the above reaction is:

1. CH₃CH₂CH₂NHCOCH₃

2. CH₃CH₂CH₂NH₂

3. CH₃CH₂CH₂CONHCH₃

4. CH₃CH₂CH₂CONHCOCH₃

 \(CH_3CH_2CHCl_2\) upon reaction with \(NaNH_2\)gives:

1.		2.
3.		4.

obtained by chlorination of n-butane, will be:
1.  Meso form
2.  Racemic mixture
3.  d-form
4.  l-form