The correct sequence of reagents used in the preparation of 4 -bromo-2-nitroethyl benzene from benzene is :

Question

The correct sequence of reagents used in the preparation of 4 -bromo-2-nitroethyl benzene from benzene is : (A) HNO 3 / H 2 SO 4, Br 2 / AlCl 3, CH 3 COCl / AlCl 3, Zn - Hg / HCl (B) Br 2 / AlBr 3, CH 3 COCl / AlCl 3, HNO 3 / H 2 SO 4 Zn / HCl (C) CH 3 COCl / AlCl 3, Br 2 / AlBr 3, HNO 3 / H 2 SO 4 Zn / HCl (D) CH 3 COCl / AlCl 3, Zn - Hg / HCl , Br 2 / AlBr 3, HNO 3 / H 2 SO 4

Tardigrade Admin · Accepted Answer

Q. The correct sequence of reagents used in the preparation of 4 -bromo-2-nitroethyl benzene from benzene is :

$H N O_{3} / H_{2} S O_{4}, B r_{2} / A lC l_{3}, C H_{3} COCl / A lC l_{3}$ , $Z n - H g / H Cl$

$B r_{2} / A lB r_{3}, C H_{3} COCl / A lC l_{3}, H N O_{3} / H_{2} S O_{4}$ $Z n / H Cl$

$C H_{3} COCl / A lC l_{3}, B r_{2} / A lB r_{3}, H N O_{3} / H_{2} S O_{4}$ $Z n / H Cl$

$C H_{3} COCl / A lC l_{3}, Z n - H g / H Cl, B r_{2} / A lB r_{3},$ $H N O_{3} / H_{2} S O_{4}$

Q. The correct sequence of reagents used in the preparation of 4 -bromo-2-nitroethyl benzene from benzene is :

HNO3​/H2​SO4​,Br2​/AlCl3​,CH3​COCl/AlCl3​, Zn−Hg/HCl

Br2​/AlBr3​,CH3​COCl/AlCl3​,HNO3​/H2​SO4​ Zn/HCl

CH3​COCl/AlCl3​,Br2​/AlBr3​,HNO3​/H2​SO4​ Zn/HCl

CH3​COCl/AlCl3​,Zn−Hg/HCl,Br2​/AlBr3​, HNO3​/H2​SO4​

$H N O_{3} / H_{2} S O_{4}, B r_{2} / A lC l_{3}, C H_{3} COCl / A lC l_{3}$ , $Z n - H g / H Cl$

$B r_{2} / A lB r_{3}, C H_{3} COCl / A lC l_{3}, H N O_{3} / H_{2} S O_{4}$ $Z n / H Cl$

$C H_{3} COCl / A lC l_{3}, B r_{2} / A lB r_{3}, H N O_{3} / H_{2} S O_{4}$ $Z n / H Cl$

$C H_{3} COCl / A lC l_{3}, Z n - H g / H Cl, B r_{2} / A lB r_{3},$ $H N O_{3} / H_{2} S O_{4}$