Gem dihalide on hydrolysis gives:

In the alkaline hydrolysis of an alkyl halide by aqueous alkali,if the concentration of the alkali is doubled,the reaction rate will ...

What is the product formed when $Ethyl \ bromide$ reacts with alcoholic $Silver \ nitrite$ $(AgNO_2)$?

In the given pair of compounds,in which pair is the second compound more reactive than the first toward $S_N2$ reaction?

The decreasing order of the rate of $S_{N^1}$ reaction for the following compounds is:
$I$. $Ph-C(Br)(CH_3)-Ph$
$II$. $Ph-CH(Br)-Ph$
$III$. $Ph-CH(Br)-CH_3$
$IV$. $Ph-CH_2Br$

From each of the following pairs,select the compound that will react faster with sodium iodide in acetone:
Pair-$A$: $(1) \, 2-$Chloropropane,$(2) \, 2-$Bromopropane
Pair-$B$: $(3) \, 1-$Bromobutane,$(4) \, 2-$Bromobutane