Which of the following is an acid-base reaction? A) C(s) + O₂(g) → CO₂(g) B) 2 HClO₄(aq) + Ca(OH)₂(aq) → 2 H₂O(l) + Ca(ClO₄)₂(aq) C) Fe(s) + 2 AgNO₃(aq) → 2 Ag(s) + Fe(NO₃)₂(aq) D) MgSO₄(aq) + Pb(NO₃)₂(aq) → Mg(NO₃)₂(aq) + PbSO₄(s) E) None of the above is an acid-base reaction.

Question

Quizplus · Accepted Answer

In option B, HCl is an acid and Ca(OH)2 is a base. They react to form H2O and CaCl2, which is a salt. Therefore, it is an acid-base reaction. The other options do not involve any acid and base reacting to form a salt and hence are not acid-base reactions.

Which of the Following Is an Acid-Base Reaction