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Chemistry in daily life Bio molecules Polymers Environmental chemistry Nitrogenous compound Aldehyde and ketone Alcohol and phenol Halo alkane Hydrocarbon Basic concept of organic chemistry Coordination chemistry d&f block element p-block element part 3 p – block element part 2 p-block element part 1 s-block element Hydrogen Principal of extraction of metal Surface chemistry Chemical kinetics Electro chemistry Solution Chemical equilibrium Thermodynamics State of matter Chemical bonding Classification of element Atomic structure Basic concept of chemistry
  • In electrolytic purification of metal impure metal act as :
    Anode
    Cathode
    Both
    None of the above
  • CO2 is evolved, when limestone ore is heated, in metallurgy this process is called :
    Roating
    Calcination
    Smelting
    Leaching of the ore
  • Chile salt petre is an ore of :
    Br
    Na
    Mg
    I
  • Substance formed by fused matter with fulx is called :
    Flux
    Ore
    Slag
    Catalyst
  • Smelting is a process in which :
    ore is heated in presence of air
    ore is melted
    ore is heated in absence of air
    ore is cooled
  • Inner lining of blast furnace is made up of:
    Basic brick
    Fire clay brick
    silica brick
    graphite brick
  • In India, mineral of titanium is :
    chalcopyrite
    elemanite
    dolomite
    bauxite
  • Generally, sulphide ore is concentrated by:
    Reduction by carbonate
    Gravity separation
    Rasting
    Froth floatation process
  • Parkes process is used in the extraction of :
    Zn
    Na
    Ag
    Fe
  • Permanent magnet is made from which of the following:
    Wrought iron
    Steel
    Cast Iron
    All the above