Which one of the following elements exist in liquid state at room temperature?
A. Hydrogen
B. Oxygen
C. Bromine
D. Iodine
Answer: Option C
A. Hydrogen
B. Oxygen
C. Bromine
D. Iodine
Answer: Option C
Red phosphorus is less reactive than yellow phosphorus because
A. it is red in colour
B. it is highly polymerised
C. it is insoluble in C2H5OH
D. it is hard
Join The Discussion