The most important Chemistry chapter 4 short questions for Class 11. 1st Year Chapter 4 of Chemistry is related to liquids and solids. These questions are for the Punjab Text Book Board that can be used within all of Punjab where this syllabus is taught.

Students are advised to must prepare these questions in order to perform the best in the board examination.

Chemistry Chapter 4 Short Questions for Class 11

  1. What are dipole-dipole forces of attraction? Explain with examples.
  2. What are Debye forces?
  3. Ice occupies more space than water. Give reason.
  4. Water and ethanol can mix in all proportions. Give reason.
  5. Lower alcohols are soluble in water but hydrocarbons are not. Give reason.
  6. Write a brief note on the solubility of hydrogen-bonded molecules.
  7. Why boiling point of water is greater than HF?
  8. Earthenware vessels keep water cool. Explain.
  9. Why evaporation causes cooling?
  10. Explain why evaporation takes place at all temperatures.
  11. Why does vapor pressure increase with temperature?
  12. Why boiling point of water is different at Murree hills and at Mount Everest?
  13. Why do different liquids evaporate at different rates even at the same temperature?
  14. Vacuum distillation can be used to avoid the decomposition of sensitive liquids. Explain.
  15. The heat of sublimation of iodine is very high, justify it.
  16. Ionic solids do not conduct electricity in a solid state. Give reason.
  17. Write down two applications of liquid crystals.
  18. Define isomorphism and polymorphism with examples.
  19. Why ionic solids are highly brittle?
  20. Why heat of sublimation of iodine is very high?
  21. Define transition temperature with an example.
  22. Cleavage is an anisotropic behavior. Explain.
  23. How do liquid crystals help in the detection of blockages in veins and arteries, infections, and tumors?
  24. What is the relationship between polymorphism and allotropy?
  25. What is isomorphism? Give examples.
  26. What is polymorphism? Give examples.
  27. The transition temperature is the term used for elements as well as compounds. Explain.
  28. The vapor pressure of diethyl ether is higher than water at the same temperature.
  29. Give four properties of molecular solids.
  30. Define molar heat of fusion and molar heat vaporization.
  31. Describe that heat of sublimation is greater than the heat of vaporization.
  32. Why does ice float on the surface of the water?
  33. Define allotropy. Give one example.
  34. Write two properties of molecular solids.
  35. Why the electrical conductivity of metals decreases with increasing temperature?
  36. What is meant by dynamic equilibrium? Give an example.
  37. HF is weaker than HCl. Why?
  38. Diamond is a hard electrical insulator. Give reason.

Find the answers from the Chemistry book of Class 11 Chapter 4

Important Short Questions of Chemistry 1st Year

By Ahsa.Pk

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