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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
  • 1mole numerically equles to :
    3.0*101
    60.02*1023
    6.23*1023
    6.02*1010
  • atomic mass means :
    mass of one atom of an element is gm
    mass of one atom of an element /1/12 part of mass
    mass of 1 atom of an element/mass of 1atom of hyd
    mass of 1 atom of an element in mg.
  • Empirical formula of an organic compound is CH₂O. if vapour density of the compound is 30, its
    CH2O
    C3H6O3
    C2H4O2
    C2H4O3