Question
Question: In which of the following reaction (s) H<sub>2</sub>SO<sub>4</sub> act as an oxidising agent and as ...
In which of the following reaction (s) H2SO4 act as an oxidising agent and as well as acid ?
A
C12 H22 O11→H2SO4 12C + 11H2O
B
S + 2H2SO4¾® 3SO2 + 2H2O
C
Cu + 2H2SO4¾® CuSO4 + SO2 + 2H2O
D
All of the above
Answer
Cu + 2H2SO4¾® CuSO4 + SO2 + 2H2O
Explanation
Solution
Cu + H2SO4 ® CuO + H2O + SO2 (H2SO4 act as oxidant)
CuO + H2SO4 ® CuSO4 + H2O (H2SO4 act as acid)