DEPARTMENT OF CHEMISTRY GOVERNMENT DEGREE COLLEGE-PUTTUR A SYSTEMATIC ANALYSIS OF THE SALT MIXTURE EXPERIMENT OBSERVATION INFERENCE 1) Primary tests : A) Physical state Crystal (or) Amorphous ---------- B) Colour blue May be copper Green May be nickel Pink May be manganese pale Green May be ferrous colour less Not the above salts 2)Solubility: A pinch of the salt is shaken with i)Cold water , hot water ii) Dil. HCl, hot Dil. HCl iii) Con. HCl, hot Con. HCl iv) Dil. HNO 3 , hot Dil. HNO 3 The mixture is soluble in ----- 3)Action of Heat: A pinch of salt is heated in a dry test tube first slowly and then strongly Yellow when hot and white when cold May be Zink