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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
  • For an exothermic reaction A + B --> C + (-E), the energy of activation is :
    equal to the energy of A
    equal to energy of B
    equal to -E
    none of these
  • Order of reaction of H2 + Cl2 --> 2HCl reaction is :
    Zero order reaction
    First order reaction
    Second order reaction
    Third order reaction
  • Rate of reaction is affected by
    Concentration
    Catalyst
    Temperature
    all the above
  • Molecularity cannot be :
    1
    2
    3
    1/2
  • The rate constant is given by the equation K = PZe-E/RT.Which factor should register a de
    T
    E
    Z
    P
  • Amongst the following chemical reactions, the unimolcular reaction is :
    H2+Cl2--> 2HCl
    PCl3+Cl2-->PCl5
    2HI-->H2 + I2
    N2O5 --> N2O4+O2
  • The specific rate constant of a first order reaction is affected by :
    Time
    Concetration of product
    Concentration of reactants
    Temperature
  • Half-life period of a I order reaction depends upon :
    Initial  concentration of the reactant
    Concetration of product
    Concentration of  both reactants and product
    None of the above
  • Which of the following undergoes a change by the use of a catalyst in the reaction:
    Raection product
    Equilibrium constant
    Activation energy
    Heat of reaction
  • starch formation by plants takes place through:
    photosynthesis
    Photolysis
    Photo phosphorescence
    Flash phololysis