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Question
What are the products obtained by heating ethane in:
(a) Excess of air
(b) Absence of air
(c) Air in presence of copper and 120atm pressure
(d) Air with molybdenum oxide at 100 atm pressure.
Solution
(a) Ethane reacts in excess of air to give carbon dioxide and water.
\[\ce{2C2H6 + 7O2 -> 4CO2 + 6H2O + Heat}\]
(b) Ethane reacts in absence of air to give carbon black.
\[\ce{C2H6 + O2 -> 2C + 3H2O}\]
(c) Ethane reacts in presence of copper and 120atm pressure to give
ethanol
\[\ce{2C2H6 + O2 ->[Cu][200°C] 2C2H5OH}\]
(d) Ethane reacts with molybdenum oxide at 100 atm pressure to
give ethanal.
\[\ce{C2H6 + O2 ->[MoO][\Delta] CH3CHO + H2O}\]
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