For the following reaction,the yield of the product is highest in:
$CH_3-Br + NaOH \to CH_3-OH + NaBr$

What type of hybridisation is present in the carbocation formed during the alkaline hydrolysis of $1-$bromo$-1-$phenylethane?

Among the given pairs,in which pair does the first compound react faster than the second compound in an $S_{N}1$ reaction?

Alkyl halide is converted into alkyl isocyanide by reaction with

When $2-$Chlorobutane is boiled with a concentrated alcoholic solution of $KOH$,the major product formed is:

The correct order for increasing reactivity towards $S_N1$ substitution for the following compounds is:
$1. CH_3CH_2Br$
$2. CH_2=CHCH(Br)CH_3$
$3. CH_2=CHBr$
$4. CH_3CH(Br)CH_3$