Which of these chemical equations describes a metal displacement reaction?

Fe₂O₃(s) + 2 AI(s) → 2 Fe(s) + Al₂O₃(s)

Explanation:

The options are missing but I looked on the web and I think these are the ones.

Which of these chemical equations describes a metal displacement reaction?

2 NaN₃(s) → 2 Na(s) + 3 N₂(g)

NO. This is a decomposition reaction.

Fe₂O₃(s) + 2 AI(s) → 2 Fe(s) + Al₂O₃(s)

YES. This is a metal displacement reaction. Fe is displaced from Fe₂O₃.

3 NO₂(g) + H₂O(l) → 2 HNO₃(aq) + NO(g)

NO. This is redox reaction.

2 P(s) + 3 Cl₂(g) → 2 PCl₃(g)

NO. This is a synthesis reaction.

2 ZnS(s) + 3 O₂(g) → 2 ZnO(s) + 2 SO₂(g)

NO. This is a redox reaction.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.