Consider the given chemical equations `C_6H_6+Cl_2 +FeCl_3 to A +B`. A and B in the given reaction respectively are

Answer

To solve the question, we need to analyze the given chemical reaction:

**Step 1: Identify the reactants and the reaction conditions.**
The reactants are benzene (C₆H₆) and chlorine (Cl₂), and the reaction is facilitated by iron(III) chloride (FeCl₃).

**Step 2: Understand the reaction mechanism.**
In the presence of FeCl₃, Cl₂ generates a chlorine cation (Cl⁺) which acts as an electrophile. Benzene, being an aromatic compound, can undergo electrophilic substitution.

**Step 3: Electrophilic substitution reaction.**
Benzene (C₆H₆) reacts with the generated Cl⁺ to form chlorobenzene (C₆H₅Cl). During this process, a hydrogen atom from benzene is replaced by a chlorine atom, and a proton (H⁺) is released.

**Step 4: Identify the products formed.**
The products of the reaction are:
- A: Chlorobenzene (C₆H₅Cl)
- B: Hydrogen chloride (HCl)

Thus, the final answer is:
- A = C₆H₅Cl (Chlorobenzene)
- B = HCl (Hydrogen chloride)