Quirindi students Grace Cowan, Tom Boorer and Josie Green will now take part in the national competition.

As one of just seven regional schools chosen to host the NSW Schools Titration Competition, QHS welcomed kids from Gunnedah and Coonabarabran schools on Tuesday.

"All teams performed at a high standard today, which shows their resilience and ability to be challenged," science head teacher Peter Roberts said.

"Normally students would have to travel to Newcastle or Armidale to compete in the competition."

"So the fact that QHS were selected to host today's event has proved a real bonus for regional and rural students in that they don't have to travel as far."

Students undertook a set of acid-base titrations in trams of three in just 90 minutes and gave the school's new $9000 science equipment a test run.

The team's score depended on the accuracy of the work and the competition was well-aligned with the school's new chemistry syllabus, Mr Roberts said.

"After this round, the National Titration Competition is a three-hour competition in which the same team of three, Grace Cowan, Tom Boorer and Josie Green, will perform even more difficult acid-based titrations," he said.

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In second place was James Redgrove, Emily Cronin and Lillie Clark, while Yolanda Such and two students from Coonabarabran came second.

In fourth place was Kelsey Hawkins, Eamon Petersons and Nicholas Forsyth, and in fifth place was Michael Easey, Heidi Campbell and Mark Mathewson.

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