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WB JEE 2022
MCQ (More than One Correct Answer)
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During the preparation of NH3 in Haber's process, the promoter(s) used is/are -

A
PtO2
B
Mo
C
Mix of Al2O3 and K2O
D
Fe and Mn
Questions Asked from MCQ (Multiple Correct Answer)
WB JEE Subjects