Which of the Following Can Logically Be Concluded by Speleothems/dripstone

question 156

Multiple Choice

Which of the following can logically be concluded by speleothems/dripstone hanging from a cave roof?

• A)The cave roof was below the water table when the speleothems formed.
• B)The cave floor was above the water table, and the roof was below the water table when the speleothems formed.
• C)The cave roof was above the water table when the speleothems formed.
• D)The cave roof was below the water table sometime after the speleothems had formed.

---

Definitions:

Allyl Cation

A positively charged species (ion), specifically a reactive intermediate with the structure CH2=CH-CH2+.

LUMO

The Lowest Unoccupied Molecular Orbital, which is the lowest energy orbital that can accept electrons.

Pentadienyl Cation

A positively charged ion with a structure derived from pentadiene, typically involved in organic reactions.

LUMO

The Lowest Unoccupied Molecular Orbital, representing the lowest-energy orbital that can accept an electron.