Left back Nikola Karabatic found the net seven times for France, which scored a total of 76 goals in two matches, more than any other team in the tournament.
Earlier, Sweden had a 41-19 victory over host Britain. Niclas Ekberg led his team with 13 goals, while Fredrik Peterson scored seven. Britain remains at the bottom of Group A after two losses.
Iceland centre Aron Palmarsson scored eight goals to help his team beat Tunisia 32-22. The 2008 silver medallist , which beat Argentina in its opening match, raced into a 24-9 lead before Tunisia rallied to reduce the deficit.
In Group B, European champion Denmark edged Spain 24-23 after Michael Knudsen scored the winning goal with just 13 seconds left on the clock.
With two wins each, Denmark shares the lead in the group with Croatia.
Ivan Cupic's eight goals helped Croatia to a 31-23 victory over rival Serbia, the silver medallist at this year's European Championship. It was the second loss for Serbia, which is level with South Korea in last place of Group B.
Hungary earned its first win by beating South Korea 22-19, leaving the Asian team with no points after two rounds.