Which of the Following Is a Gas-Evolution Reaction

question 122

Multiple Choice

Which of the following is a gas-evolution reaction?

• A) 2 C₂H₆(l) + 7 O₂(g) → 4 CO₂(g) + 6 H₂O(g)
• B) 2 H₂(g) + O₂(g) → 2 H₂O(g)
• C) KCl(aq) + NaNO₃(aq) → KNO₃(aq) + NaCl(s)
• D) NH₄Br(aq) + KOH(aq) → KBr(aq) + NH₃(g) + H₂O(l)
• E) None of the above is a gas-evolution reaction.

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