Question

Identify the compounds A, B, C, and (D):

• A.
• B.
• C.
• D.

Hint:

In organic 6256d60dc6a8bca7110c99d1, the sequence of reactions typically involves stepwise functional group transformations, such as halogenation, nitration, or Friedel-Crafts reactions (alkylation and acylation). In this case, the use of Zn with heat reduces the halogenated compound, while the further steps involve typical electrophilic aromatic substitution reactions.

Answer 1

The Correct Option is C

The reaction sequence provided involves the following steps: - The starting compound is 1,2,2-tetrachloroethane (C$_2$H$_2$Cl$_4$). 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$_3$, which introduces a NO$_2$ group into the benzene ring, resulting in compound (B). - The third step involves chlorination with con(C) H$_2$SO$_4$, leading to the formation of a chloro derivative, (C). - The final step is an alkylation with anhydrous AlCl$_3$, 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$_6$H$_5$CH$_3$ - B: C$_6$H$_5$NO$_2$ - C: C$_6$H$_4$Cl - D: C$_6$H$_4$ClNO$_2$