In the laboratory preparation of oxygen, dried oxygen is usually collected over
A.
hydrochloric acid
B.
mercury
C.
calcium chloride
D.
tetraoxosulphate (VI) acid
Answer: B
To see detailed solution to this question and thousands of other questions offline, download TestDriller UTME. Practice rigorously for UTME, enjoy educational games, summary of JAMB literature books, compete with your peers, win prizes and more.