Benzene is an unsaturated hydrocarbon but does not give additio reactions under normal conditions. It undergoes electrophilic substitution reactions mainly. In substituted derivatives of benzene, orientation of further substitution is decided by resonance effect, steric factor etc. On the basis of this , answer of following:
Q. Which of the followig reagents used for alkylation of benzene by electrophilic substitution mechanism will give same product?

Options

A. `CH_(3)-overset(CH_(3))overset(|)CH-CH_(2)-Cl` in presence of anhy. `AlCl_(3)`
B. `(CH_(3))_(3)COH` in presaence of `H_(2)SO_(4)`
C. `(CH_(3))_(2)CH-CH_(2)-OH` in presenc of `H_(2)SO_(4)`
D. `CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(2)-OH` in presence of `H_(2)SO_(4)`

Answer

A, B, C

Explanation

`C_(6)H_(6)+CH_(3)-overset(CH_(3))overset(|)CH-CH_(2)-Cl`
`underset(-18^(@)C "to" 80^(@)C)overset(AlCl_(3))toC_(6)H_(5)C(CH_(3))_(3)`
`C_(6)H_(6)+CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH_(2)-OH`
`underset(60^(@)C)overset(BF_(3))toC_(6)H_(5)C(CH_(3))_(2)CH_(2)CH_(3)`
`CH_(6)H_(6)+(CH_(3))_(3)COHoverset(H_(3)SO_(4))toC_(6)H_(5)-C(CH_(3))_(3)`
`C_(6)H_(6)+(CH_(3))_(2)C=CH_(2)overset(H_(2)SO_(4))toC_(6)H_(5)-C(CH_(3))_(3)`