USES OF AL, CU, ZN, AND FE

The number of metals that show passivity with concentrate HNO_(3) among ltbr. Cr, Fe, Ni, Cu, Zn, Al, Ag, Sn

How many of these metals can displace H_(2) easily from acids. Fe, Mg, Al, Cu, Ag, Au, Zn

Write the names and formulate of main ores of Fe , Cu , Al and Zn .

Arrange the following metals in the order in whiCHM they displace eaCHM other from the solution of their salts. Al, Cu, Fe, Mg, and Zn .