What will be the major product of the following reaction?
$(CH_3)_2CH-CH_2Br \xrightarrow{CH_3O^- / CH_3OH}$

Identify the correct order for the given property for the following compounds. Choose the correct answer from the options given below:
$(A)$ Boiling Point: $CH_3CH_2Cl < CH_3CH_2CH_2Cl < CH_3CH_2CH_2CH_2Cl$
$(B)$ Density: $CH_3CH_2Br < CH_3CH_2Cl < CH_3CH_2I$
$(C)$ Boiling Point: $CH_3CH_2Br < (CH_3)_2CHBr < (CH_3)_3CBr$
$(D)$ Density: $CH_3CH(I)Br < CH_3CH_2CH_2Br < CH_3CH(Br)Cl$
$(E)$ Boiling Point: $CH_3CH_2CH_2CH_2Cl > (CH_3)_2CHCH_2Cl > (CH_3)_3CCl$

$1-$chlorobutane on treatment with alcoholic potash forms

Identify the products formed in the following reaction: $CH_3-CH_2-CH_2-CHBr-CH_3 \xrightarrow{KOH / C_2H_5OH} ?$

Which one of the following is more readily hydrolysed by $S_{N}1$ mechanism?

$3$-Phenylpropene on reaction with $HBr$ gives (as a major product)