General Princip...

Match the processes with the element for which they are used:
Column-I                                                         Column-II
(P) Bessemerisation                                         (1) Ti

What is the role of aniline or cresol when added in a forth floatation process? 

the mass of carbon anode consumed (giving only carbon dioxide) in the production of $$270Kg$$ of aluminium metal from bauxite by the Hall's process is: 

Statement-I Froth Floatation process is based on the different wetting nature of ore and gangue particles
Statement-II Mustard oil is used as a frother in froth floatation 

Which of the following gives an aldehyde on dry distillation?

In solid $$CuS{ O }_{4  }.5{H  }_{2  }O$$ ,copper is coordinated to number of water molecule:-

In electrolysis of $${\text{A}}{{\text{l}}_{\text{2}}}{{\text{O}}_{\text{3}}}$$ by Hall-Heroult process, which of the following statement(s) is/are correct?

Which of the following metals occurs in nature principally oxide ores.

The incorrect statement for Ellingham diagram is 

An incorrect statement about froth floatation method is: