1.

Standard electrode potential of An and Fe are known to be (i) -0.76V and (ii) -0.44V respectively. How does it explain that galvanization prevents rusting of iron while zinc slowly dissolves away

Answer»

Since (i) is LESS than (II), zinc becomes the CATHODE and IRON the anode
Since (i) is less than (ii), zinc becomes the anode and iron the cathode
Since (i) is more than (ii), zinc becomes the anode and iron the cathode
Since (i) is more than (ii), zinc becomes the cathode and iron the anode

Answer :B


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