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Question
In which of the following reactions heterogenous catalysis is involved?
(a) \[\ce{2SO2 (g) + O2 (g) ->[NO(g)] 2SO3 (g)}\]
(b) \[\ce{2SO2 (g) ->[Pt(s)] 2SO3 (g)}\]
(c) \[\ce{N2 (g) + 3H2 (g) ->[Fe(s)] 2NH3 (g)}\]
(d) \[\ce{CH3COOCH3 (l) + H2O (l) ->[HCI(l)] CH3COOH (aq) + CH3OH (aq)}\]
Options
(b), (c)
(b), (c), (d)
(a), (b), (c)
(d)
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Solution
(b), (c)
Explanation:
In reaction \[\ce{2SO2 (g) ->[Pt(s)] 2SO3 (g)}\] and reaction \[\ce{N2 (g) + 3H2 (g) ->[Fe(s)] 2NH3 (g)}\], catalysts are in solid state, and reactants and products are gases.
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