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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
  • Oil of vitriol is :
    H2SO3
    H2S2O7
    H2SO4
    H2S2O8
  • what is the reason of bleaching action of SO2:
    Acidic property
    Oxidising property
    Basic property
    Reducing Property
  • Explosive compound is :
    Phosphorus trichloride
    Hyponitrous acid
    Nitrosyl chloride
    Nitrogen trichloride
  • What is the reason of chemical inertness of nitrogen :
    NO bond polarity
    Less internuclear distance
    High bond energy
    Multi bond formation nature of the molecule
  • Most metallic element is :
    P
    As
    Sb
    Bi
  • Due to the following reason liquid ammonia is used in refrigeration:
    Basic nature
    Stable compound
    More heat of vaporisation
    More dipole moment
  • Copper is obtained when ammonia is passed over hot copper oxide, this show that ammonia is :
    Oxidant
    Nitrating Compound
    Reductant
    Dehydrating agent
  • which ha maximum boiling point:
    H2O
    H2S
    H2Se
    H2Te
  • Gas obtained from ammonium dichromate:
    N2
    O2
    H2
    NH3
  • Allotropy is shown by:
    Al
    Sn
    Pb
    Cu