Which position will be attacked most rapidly by the nitronium ion `(-NO_(2))^(+)` when the compound undergoes nitration with `HNO_(3)//H_(2)SO_(4)`:

Which position will be attacked most rapidly by the nitronium ion (-NO_2)^+ when the compound undergoes nitration with HNO_3//H_2SO_4 :

In nitration , HNO_3 and H_2SO_4 act as:

During nitratio of benzene using a mixture of conc. HNO_(3) and conc. H_(2)SO_(4) , function of conc. H_(2)SO_(4) is to increase the rate of reaction by increasing the concentration of NO_(2)^(+) according to following reaction. HNO_(3)+H_(2)SO_(4) rarr NO_(2)^(+)+HSO_(4)^(-)+H_(2)O Here nitric acid acts as

Which of the following alcohols will dehydrate most rapidly when treatment with conc. H_(2)SO_(4) ?