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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
  • Lanthanide contraction is related with
    valence electrons
    densities
    nuclear composition
    ionic radii
  • Which metal possesses the maximum melting point :
    Pt
    Pd
    W
    Sn
  • Paramagnetic property is :
    of m.p. and b.p. of element
    of completely filled electronic subshells
    of unpaired electrons
    of transition elements
  • Transition elements:
    show variable valencies
    have incomplete d-orbital
    form colored compound
    All the above
  • General electronic configuration of transition element is :
    (n-1) d1-10ns2
    (n-1) d1-10ns1-2
    (n-1) d10 ns2
    (n-1) d6 ns1