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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
  • the bad conductor of electricity is
    HCl
    HBr
    H2F2
    HI
  • Life mixture for Asthma patient is :
    He and O2 mixture
    Ne and O2 mixture
    Xe and N2 mixture
    Ar and O2 mixture
  • Which noble gas shows the least polarisation:
    He
    Ar
    Kr
    Xe
  • Hydrolysis of XeF6 gives:
    XeO2
    XeO
    XeO3
    Xe
  • Who obtained the stable compounds of noble gases first :
    Rayleigh
    Ramsay
    Niel Bartlet
    Rutherford
  • Out of He, Ar, Kr and Xe, which element forms least number of compounds:
    Ar
    He
    Kr
    Xe
  • out of F2 , Cl2 , Br2 and I2 the strongest oxidising ag
    F2
    Cl2
    Br2
    I2
  • Element those have ns2np6 electronic configuration in valance shell are called
    Halogens
    Transition elements
    Noble gases
    Alkali metals
  • In solid argon atoms are linked with :
    hydrogen bond
    ionic
    vander walls forces
    hydrophobic bond
  • XeF2 molecule is :
    Square planner
    Pyramidal
    Linear
    Trigonal plannar