35. Phosphorus is kept in water because A.Its ignition temperature is very high B.Its ignition temperature is very low C.Its critical temperature is high D.Its critical temperature is low
Answer: Option B Solution: White phosphorus is highly reactive, and spontaneously ignites at about 30°C in moist air. It is usually stored under water, to prevent exposure to the air. It is also extremely toxic, even in very small quantities.
