General Principles & Processes of Isolating Elemen

Given below are two statements.

Statement I: During electrolytic refining, blister copper deposits precious metals.

Statement II: In the process of obtaining pure copper by electrolysis method, copper blister is used to make the anode.

In the light of the above statements, choose the correct answer form the option given below:

Given below are two statements.

Statement I: Pig iron is obtained by heating cast iron with scrap iron.

Statement II: Pig iron has a relatively lower carbon content than that of cast iron. In the light of the above statements, choose the correct answer form the options given below.

The refining method used when the metal and the impurities have low and high melting temperatures, respectively is

Which of the following methods are not used to refine any metal?

           (A). Liquation

           (B). Calcination

           (C). Electrolysis

           (D). Leaching

           (E). Distillation

Which of the reaction is suitable for concentrating ore by leaching process?

In liquation process used for tin (Sn), the metal

Among the following ores Bauxite, Siderite, Cuprite, Calamine, Haematite, Kaolinite, Malachite, Magnetite, Sphalerite, Limonite, Cryolite, the number of principal ores if iron is ___________.

Leaching of gold with dilute aqueous solution of NaCN in presence of oxygen gives complex [A], which on reaction with zinc forms the elemental gold an another complex [B], [A] and [B], respectively are