As the number of carbon atoms in an alkane chain increases,the boiling point...........

Which of the following reactions proceeds via a secondary free radical?

What is the condition to obtain $C_2H_5Cl$ in excess?

$C_3H_8 + Cl_2 \xrightarrow{\text{Light}} C_3H_7Cl + HCl$ is an example of which of the following types of reactions?

What is the product of the following reaction?
$p-CH_3C_6H_4MgBr + CH_3CH_2OH \rightarrow ?$

Among the following free radical bromination reactions,select those in which a $2^o$ halide is the major product. The reactions are as follows:
$(P)$ Cyclohexane + $Br_2/hv$
$(Q)$ Methylcyclobutane + $Br_2/hv$
$(R)$ Ethylbenzene + $Br_2/hv$
$(S)$ $3-$Methylhexane + $Br_2/hv$
$(T)$ Decalin + $Br_2/hv$
$(U)$ Butane + $Br_2/hv$