Pick out the wrong statement 1 K Cr O7 reduces ferric

Last updated: 7/4/2023

Pick out the wrong statement 1 K Cr O7 reduces ferric sulphate to ferrous sulphate 2 Iron do not form amalgam 3 Permanent magnet is made by an alloy called Alnico 4 In the Lathanides ionic radius decreases from La 3 to Lu 3