Question

3.
6 Give reason for the following observations naphthalene balls disappeare with time with out leaving any solid...​

Answer 1

Answer:

napthalene are very reactive non-metals . So they react easily with air and change into its vapour form directly .

Answer 2

Answer:

Napthalene balls or napthelene is a sublimable substance. When left behind, it vaporizes automatically without being heated, into gas.