Complete the following reactions:
$(1)$ $1$-Chloropropane $\xrightarrow[{KOH}]{{\text{ethanol}}} (B)$ $\xrightarrow[{CCl_4}]{{Br_2}} (C)$
$(2)$ Ethane $\xrightarrow[{hv}]{{Cl_2}} (B)$ $\xrightarrow[{Na, \text{ether}}]{} (C)$

Reaction of $o$-toluic acid with $Br_2/Fe$ gives:

Correct statements regarding alkyl halides ($R-X$) among the following are: A. Alcohol being less polar solvent as compared to water, alcoholic $KOH$ favours elimination reaction with $R-X$. B. Order of reactivity towards $S_N1$ mechanism is $C_6H_5-CH_2-Cl > C_6H_5-CHCl-C_6H_5$. C. Non substituted aryl halides exhibit properties similar to alkyl halides. D. Vinyl chloride is an example of haloalkene and allyl chloride is an example of haloalkyne. E. $R-Cl$ can be prepared by reacting $R-OH$ with $SOCl_2$ but $Ar-Cl$ cannot be prepared by reacting $Ar-OH$ with $SOCl_2$. Choose the correct answer from the options given below:

Draw the structures of major monohalo products in each of the following reactions:

Identify the major product formed from the sequence of reactions given below:
$C_6H_5NH_2$ $\xrightarrow[(ii) Cu_2Cl_2]{(i) NaNO_2/HCl, 273 K}$ $\xrightarrow{(iii) Na/dry ether} \text{Product}$

Match List-$I$ with List-$II$:

List-$I$	List-$II$
$a$. Benzenediazonium chloride $\xrightarrow{Cu_2Cl_2/HCl}$ Chlorobenzene $+ N_2$	$i$. Wurtz reaction
$b$. Benzenediazonium chloride $\xrightarrow{Cu/HCl}$ Chlorobenzene $+ N_2$	$ii$. Sandmeyer reaction
$c$. $2 CH_3CH_2Cl + 2 Na \xrightarrow{Ether} C_2H_5-C_2H_5 + 2 NaCl$	$iii$. Fittig reaction
$d$. $2 C_6H_5Cl + 2 Na \xrightarrow{Ether} C_6H_5-C_6H_5 + 2 NaCl$	$iv$. Gatterman reaction

Choose the correct answer from the options given below: