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MediumChemistry
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(i) H₂(g) + Cl₂(g) →2HCl(g) ; Δ H= − x kJ (ii) NaCl + H₂SO₄ → NaHSO₄ +HCl ; Δ H= − y kJ (iii)2H₂O +2Cl₂ →4HCl +O₂ ; Δ H= − z kJ From the above equations, the value of ΔHf of HCl is -
A
− x kJ
B
− y kJ
C
− z kJ
D
−x/2 kJ
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