Nitric acid was the other alternative, which the contestant chose as "it had the most uses".
Sqad, he was so busy trying to promote his music his head was firmly up his own acapella. Well he paid the price for it.
The choices on the calculus question were algebra/division/calculus.
The Chaser thought he should have got the answer correct.
Compared to the lovely Dutchman on yesterday's broadcast whose first language was not English and who was a single contender in the final chase playing for and winning £4,000 I know which I liked best :)