Chemistry · Chemical Equilibrium
Based on the Hard and Soft Acids and Bases (HSAB) principle, choose the equilibria from the following that are NOT favoured to proceed to the right: (A) As2S5 + 5HgO ⇌ As2O5 + 5HgS (B) La2(CO3)3 + Bi2S3 ⇌ La2S3 + Bi2(CO3)3 (C) CdSO4 + CaS ⇌ CdS + CaSO4 (D) BeF2 + HgI2 ⇌ BeI2 + HgF2
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1B and D✓
- 2B and C
- 3A and C
- 4A and B
Correct answer
B and D
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