Subject :NSO Class : Class 5
Four burning sticks are placed into different containers P, Q, R and S containing oxygen, carbon dioxide, nitrogen and air respectively. The observations are then noted down. Which of these observations is correct?
--------Container------------------Observation
AP------------------The glowing stick is extinguished immediately.
BQ------------------The glowing stick bursts into flame.
CR------------------The glowing stick bursts into flame.
DS------------------The glowing stick continues to glow for a while.