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

Different hydrogen atoms in the compound are represented by alphabets:
$CH_3(A)-CH=CH(B)-CH_2(C)-CH_2(D)-CH(E)(CH_3)_2(F)$
Arrange them in decreasing order of reactivity towards free radical substitution.

The alkane that gives only one mono-chloro product on chlorination with $Cl_2$ in the presence of diffused sunlight is:

Which reagent will be used in the following process?
$CH_3-CH_2-CH_2-CH_3 \rightarrow CH_3-CH_2-CH_2-CH_2-Cl + CH_3-CH_2-CHCl-CH_3$

$A$ mixture of ethyl iodide and $n$-propyl iodide is subjected to Wurtz reaction. The hydrocarbon which will not be formed is

$A$ mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isobutane was obtained as a product. The two chlorine compounds are