Final answer:
The taste sensation elicited by the most chemically diverse group of tastants is umami.
Step-by-step explanation:
The taste sensation elicited by the most chemically diverse group of tastants is umami. Umami is the fifth basic taste and is associated with a savory or delicious taste. It is caused by the taste of the amino acid L-glutamate, which is found in foods like meat, cheese, and mushrooms.