| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| (Kelly of the Clue Crew juices a lemon in the chemistry lab.) This acid--C6H8O7--is found in the juice I'mextracting | citric acid | $600 | J | SCIENCE LAB | 2005-10-28 | #4860 | |
| It's the acid that makes lemons & limes sour | citric acid | $400 | DJ | SCIENCE | 1991-03-06 | #1508 |