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❓ Question Which of the following statements is correct ? 1️⃣ Δ f H 298 ∘ \Delta_f H^\circ_{298} Δ f ​ H 298 ∘ ​ is zero for O(g) 2️⃣ The stand…

❓ Question The hydration energies of K + \text{K}^+  and Cl − \text{Cl}^-  are − x -x  and − y  kJ/mol -y~\text{kJ/mol}  respectively. If the la…