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Which of the following correctly denotes the catalyst and promoter used in Haber's process for manufacture of ammonia, respectively?

(a) finely divided iron, Me
(b) conc. $H_2SO_4$, Mo
(c) finely divided iron, Mo
(d) finely divided nickel, Mo
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Answer: finely divided iron, Mo
Haber's process $\quad N_2(g) + 3H_2(g) \Large\xrightarrow[\quad\text{200 bar, 723-773 K}\quad \text{ Mo as promoter}\quad]{\text{finely divided iron as catalyst}} \quad$$ 2NH_3(g)$
answered Apr 4, 2014 by mosymeow_1
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