When hydrolyzed with aqueous KOH, compounds that undergoes racemization are:

(i)		(ii)	CH3CH2CH2Cl
(iii)		(iv)

The end product (C) in the below-mentioned reaction is:
\(H_3C-Br\xrightarrow{\bf KCN }A\xrightarrow{ \bf H_3O^+~~}B\xrightarrow[\bf\text{Ether}]{~~LiAlH_4~~}C\)

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

1.		2.
3.		4.

Consider the reactions:

The correct order of increasing C-X bond reactivity toward nucleophiles among the following is:

I		II
III	\(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{X}\)	IV	\(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{X}\)

Which of the following reactions cannot form new carbon-carbon bonds?

1. Reimer-Tiemann reaction

2. Cannizaro reaction

3. Wurtz reaction

4. Friedel-Crafts acylation

\(C_6H_5CH_2Br \xrightarrow[2.~H_3O^+] {1.Mg,Ether}~\mathrm X, \)
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. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OCH}_2 \mathrm{C}_6 \mathrm{H}_5\)

For the following: 
(i) I^- 
(ii) Cl^- 
(iii) Br^- 
The increasing order of nucleophilicity would be:

1. I^-<Br^-<Cl^-

2. Cl^-<Br^-<I^- 

3. I^- <Cl^-<Br^-

4. Br^-<Cl^-<I^-

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: