Chapter U2.3, Problem 5E

Interpretation Introduction

Interpretation:

How molecules with different structural formulas have different smell must be explained.

Concept introduction:

Different molecules have different functional groups and different structural pattern. The interactions of molecules with nasal receptors are different.

Answer to Problem 5E

As different molecules have different functional groups so these have different smell.

Explanation of Solution

Smell of a molecule depends on the structural features and functional group. As molecules with different structural formulas might have different functional groups those can have different smell. For example ester has fruity smell, carboxylic compounds are putrid, alcoholic compounds have pungent odor and ketone have minty smell. Thus, the smell depends on functional groups present in the molecule.

Conclusion

Molecules may be different smell due to having difference in their functional groups.