Most Important & Most Repeated MCQs

  • Temperature
  • Intermolecular forces
  • Atmospheric pressure
  • Molecular mass
  • a
  • Viscosity is the resistance of liquid to flow.

  • Temperature
  • Work done
  • Internal energy
  • Pressure
  • b
  • Temperature, Internal Energy and Pressure are state functions.

  • 4.184 joule
  • 41.48 joule
  • 418.4 joule
  • 4184.0 joule
  • a
  • 1 Kilocalorie is equal to 4184 J.
    A calorie is the amount of heat required to raise the temperature of 1 gram of water by 1°C.

  • Accepts proton
  • Donates proton
  • Is having incomplete octet
  • Donates electrons
  • c
  • Reduction occur cathode
  • Oxidation occur at cathode
  • Electron flow from cathode to anode
  • Both A and B
  • a
  • Oxidation occurs at anode.
    Electron flow from anode to cathode.

  • 50% Nitrogen and 50% Oxygen
  • 96% Helium and 4% Oxygen
  • 96% Oxygen and 4% Helium
  • 78% Nitrogen and 21% Oxygen
  • b
  • SCUBA stands for Self Contained Underwater Breathing Apparatus. It is used for breathing underwater.
    Pure mixture of 50% both is dangerous.
    Normal ratio of both is not used for deep depth.
    Maximum Helium as 96% is used in deep dive to prevent from Nitrogen Narcosis.
    Too much Oxygen is dangerous.

  • H plus ion are added
  • OH negative ions are added
  • Temperature increased
  • Pressure increase
  • c
  • Kw is ionic product of water.
    Kw tells us about strength of water in making H+ and OH-.
    H+ makes water acidic and HO- makes water basic.
    Pure water has equal amount of H+ and HO-.

  • Dry cell
  • Electrolytic cell
  • Voltaic cell
  • Daniel solution
  • c
  • An electrochemical cell that converts chemical energy into electrical energy by a spontaneous redox reaction.
    Lead storage battery works on spontaneous redox reactions.
    Voltaic cell is also called Galvanic cell.