The reaction sequence provided involves the following steps:
- The starting compound is 1,2,2-tetrachloroethane (C H Cl ). In the first step, this undergoes a reduction reaction with Zn at elevated temperature, which typically leads to the replacement of the halogen atoms by hydrogen atoms, forming an intermediate compound (A).
- In the second step, the intermediate undergoes nitration using con(C) HNO , which introduces a NO group into the benzene ring, resulting in compound (B).
- The third step involves chlorination with con(C) H SO , leading to the formation of a chloro derivative, (C).
- The final step is an alkylation with anhydrous AlCl , which leads to the formation of compound (D). The correct option corresponding to this sequence is (C) Thus, the compounds identified in this sequence are as follows:
- A: C H CH
- B: C H NO
- C: C H Cl
- D: C H ClNO
