Answer:
rotten egg smell
Explanation:
1,5-pentanedithiol ( C₅H₁₂S ) -
The compound have thiol as the functional group , and hence will show some characteristics of thiol group ,
The thiol group is a -SH group , they are also called mercaptan functional group .
The thiol group has a strong characteristic smell of rotten egg .
And hence , the compound 1,5-pentanedithiol ( C₅H₁₂S ) can easily be distinguished by its rotten egg smell .
