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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 O11H2SO4\overset{\quad H_{2}SO_{4}\quad}{\rightarrow} 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)