Cupric Oxide or black oxide of copper (CuO)
It is obtained by heating copper in air above 9000c Cu + O2 above
Transition Metals & Iron
The elements of ‘d’ block of periodic table including elements of Group IB to vii B. And viii
Some Special Steels
Steel Composition Properties Uses Stainless Steel Fe=75% Cr=18% Ni=8% C=1% Have very high chemical
Mohr’s salt or ferrous ammonium sulphate FeSO4(NH4)2 SO4.6H2O)
Hydrated ferrous ammonium sulphate is commonly known as mohr’s salt .It is prepared by
Mercurous Chloride or Calomel (Hg2Cl2)
Preparation:- 1. It is obtain by adding HCl to mercurous Nitrate solution. Hg2 (NO3)2 +2HCl ?