Give reason for the following observations:

Naphthalene balls disappear with time without leaving any solid.

 

Answer

Naphthalene balls are volatile substances which sublime , i.e., they change from solid to gaseous state without coming into liquid state.

Hence, naphthalene balls disappear with time without leaving any solid.

q3 - Sublimation Gif.gif

  1. Class 9
  2. Chapter 1 Class 9 - Matter In Our Surroundings (Deleted)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo