Chemistry Important Questions for Maharashtra SSC/12th Board exam 2019

Chemistry Important Questions for Maharashtra SSC/12th Board exam 2019

  1. Distinguish between crystalline solid and amorphous solid.
  2. What are Ellingham diagrams? Write the features of it.
  3. Write cell reactions in lead storage battery during discharge.
  4. What is calcination? Explain it with reactions.
  5. Define boiling point. Write the formula to determine molar mass of a solute using freezing point depression method.
  6. Draw neat and labelled diagram of dry cell.
  7. Explain graphical method to determine activation energy of a reaction.
  8. Explain impurity defect in stainless steel with diagram.
  9. What is Enthalpy of fusion and Enthalpy of atomization?
  10. Mention names and formulae of two ores of aluminum.
  11. What is ferromagnetism? Iron is strongly ferromagnetic. Explain.
  12. Write the Nernst equation and explain the terms involved.
  13. Calculate the mole fraction a4nd molality of HNO3 in a solution containing 12.2% HNO3.
  14. What is the action of excess of air on ammonia?
  15. Define osmosis.
  16. Explain the structure of Sulphur dioxide.
  17. Explain the relationship between Gibb’s standard energy change of the reaction and equilibrium constant.
  18. Define cell constant. Draw a neat and well labelled diagram of primary reference electrode.
  19. What is pseudo first order reaction? Give an example for the same.
  20. Write the reactions involved in large scale preparation of Nitric Acid.