Which of the following reactions has the ratio of volumes of reacting gases and the product as 1:2:2? (A) 2CO_{(g)} + O_{2(g)} = 2CO_{2(g)} (B) O_{2(g)} + 2H_{2(g)} = 2H_{2}O_{(g)} (C) H_{2(g)} + F_{2(g)} = 2HF_{(g)} (D) N_{2(g)} + 3H_{2(g)} = 2NH_{3(g)}

Which of the following reactions has the ratio of volumes of reacting

1.	Which of the following reactions has the ratio of volumes of reacting gases and the product as 1:2:2? (A) 2CO_{(g)} + O_{2(g)} = 2CO_{2(g)} (B) O_{2(g)} + 2H_{2(g)} = 2H_{2}O_{(g)} (C) H_{2(g)} + F_{2(g)} = 2HF_{(g)} (D) N_{2(g)} + 3H_{2(g)} = 2NH_{3(g)}
Answer» udent,◆ Answer -(B) O2(g + 2H2(g) = 2H2O(g)● Explaination -According to AVOGADRO's law, equal volumes of all GASES, at the same TEMPERATURE and pressure, have the same number of molecules.Reaction,O2(g + 2H2(g) = 2H2O(g)In above reaction, 1 molecule of O2(g) and 2 molecules of H2(g) react to give 2 molecules of H2O(g).Hence according to Avogadro's law, 1 volume of O2(g) and 2 volumes of H2(g) react to give 2 volumes of H2O(g).Therefore, ratio of volumes of reacting gases and the PRODUCT in the reaction is 1:2:2.Thanks dear. HOPE this helps you...