The reaction of $1$-chlorobutane with alcoholic potash gives $......$.

Consider the reaction shown below. The number of $\pi$ electrons present in the major product '$P$' is ...... .

The rate of reaction of $t-$butyl bromide and $NaOH$ in water depends on the concentration of

Arrange the following organic halides in the correct order of reactivity towards $S_{N}2$ displacement:
$(P) \ (CH_3)_2C(Br)CH_2CH_3$
$(Q) \ BrCH_2(CH_2)_3CH_3$
$(R) \ CH_3CH(Br)(CH_2)_2CH_3$

What are reactant $X$ and product $Y$ in the following sequence of reactions?
Reactant $X$ $\xrightarrow{\text{Pyridine, } CH_3C_6H_4SO_2Cl}$ Intermediate $\xrightarrow{NaN_3, \text{Ethanol-water}}$ Product $Y$

The reaction:
$CH_3CH_2I + KOH_{(aq)} \to CH_3CH_2OH + KI$
is classified as :