Which of the mentioned is the formula of Oleum?
A. H2S2O8
B. H2S2O6
C. H2S2O7
D. H2S2O5
Answer:C
Which of the mentioned is the formula of Oleum?
A. H2S2O8 B. H2S2O6 C. H2S2O7 D. H2S2O5
Explanation: Oleum – (H2SO4+SO3) which on summing up the like compounds will give H2S2O7.