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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
  • Which compount has zero resistance at o K temprature:
    Conductor
    Semi conductor
    Insulator
    Super conductor
  • the number of tetrahedral voids in unit cell of cubic close packing:
    2
    4
    6
    8
  • The number of atoms present in fcc:
    1
    2
    3
    4
  • The number of atoms present in simple  cubic cell:
    1
    2
    3
    4
  • Which one is a ferrimagnetic:
    Fe
    Fe3O4
    MnO2
    Co
  • The substance which is a silicate:
    Plastic
    Mica
    Soap
    Ferrite
  • Which one is example of 8:8 coordination:
    CaF2
    ZnS
    KCl
    CsCl
  • which one has maximum ionic radius
    Na+
    Al+++
    Mg++
    Si++++
  • the defect which is created due to the presence of electron in the vacancy formed by anion is :
    Frenkel defect
    F-centre
    Schottky defect
    Stoichiometric defect
  • Crystals which are conductor of electricity and heat:
    Metallic
    Ionic
    Covalent
    Molecular