Select the incorrect statement

(1) Ga and In do not form carbides because their lower O.S. (i.e., +1) is more stable than higher O.S. (i.e., +3) (Due to inert pair effect).(2) Al becomes passive in conc. HNO3, conc. HClO4 and H2CrO4 due to the formation of a very thin film of oxide on the metal surface (3 and 4) Al is a good reducing agent and reduces the oxides ofmetals like, Cr, Fe, Mn & WCr2O3+2Al→2Cr+Al2O3+Heat WO3+2Al→W+Al2O3+ Heat  Fe2O3+2Al→2Fe+Al2O3+Heat