JEE Main 2026 Chemistry question

Consider the following data: (i) 2Al(s) + 6HCl(aq) → Al₂Cl₆(aq) + 3H₂(g), ΔH = −1200 kJ/mol (ii) H₂(g) + Cl₂(g) → 2HCl(g), ΔH = −164 kJ/mol (iii) HCl(g) + aq → HCl(aq), ΔH = −83 kJ/mol (iv) Al₂Cl₆(s) + aq → Al₂Cl₆(aq), ΔH = −663 kJ/mol The enthalpy of formation of anhydrous solid Al₂Cl₆ is:

• (A)−648 kJ mol⁻¹
• (B)−1350 kJ mol⁻¹
• (C)−2002 kJ mol⁻¹
• (D)−1527 kJ mol⁻¹Correct