Consider the reactions:

(i)	\(\small{{(CH_3)}_2CHCH_2Br\ \xrightarrow[]{C_2H_5OH}{(CH_3)}_2CHCH_2OC_2H_5 + HBr}\)
(ii)	\(\small{{(CH_3)}_2CHCH_2Br\ \xrightarrow[]{C_2H_5O^-}{(CH_3)}_2CHCH_2OC_2H_5 + Br^-}\)

The mechanisms of reactions (i) and (ii) are, respectively:
1. S_N2 and S_N1
2. S_N1 and S_N2
3. S_N1 and S_N1
4. S_N2 and S_N2

The halogen exchange reaction among the following is exhibited by:  

1.	\(\begin{aligned}RX \ + \ NaI \ \xrightarrow[]{\textbf{Acetone}} \ RI \ + \ NaX \\ \\ \end{aligned} \)
2.
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. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OCH}_2 \mathrm{C}_6 \mathrm{H}_5\)

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

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

Why is the Wurtz reaction not preferred for the preparation of alkanes containing an odd number of carbon atoms?

The correct sequence for increasing dipole moment is:

1. CCl₄ < CHCl₃ < CH₂Cl₂
2. CHCl₃ < CH₂Cl₂ < CCl₄
3. CCl₄ < CH₂Cl₂ < CHCl₃
4. CH₂Cl₂ < CCl₄ < CHCl₃

A hydrocarbon C₅H₁₀ does not react with chlorine in the dark but gives a single monochloro compound C₅H₉Cl in bright sunlight. Hydrocarbon could be:

The compound with the formula C₄H₉Br has how many structural isomers?

a. CH₃Br or CH₃I  
b. (CH₃)₃CCl or CH₃Cl
The above-mentioned compounds that react faster in S N₂ reaction with OH^- from each given pair respectively are:

1. CH₃Br, CH₃I
2. CH₃Br, (CH₃)₃CCl
3. CH₃I, CH₃Cl
4. CH₃I, (CH₃)₃CCl

Out of ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{Cl}$ $\mathrm{and}$ ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CHClC}}_6{\mathrm{H}}_5$, the one that gets easily hydrolyzed by aqueous KOH is :

1. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CHClC}}_6{\mathrm{H}}_5$ 

2. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{Cl}$

3. Both react equally

4. None of the above