Which of the following reaction required an oxidising agent ?

Which of the following reactions require an oxidising agent?

In which of the following reaction H_2O_2 act as oxidising agent?

In which of the following reaction dihydron acts as an oxidising agent?

In which of the following reaction dihydron acts as an oxidising agent?

Hot concentrated sulphur acid is a moderately strong oxidising agent. Which of the following reactions does not show oxidising behaviour -

Hot concentrated sulphuric acid a is a moderately strong oxidising agent. Which of the following reactions does not show oxidising behavior-

Hot concentrated sulphuric acid is a moderately strong oxidising agent. Which of the following reactions does not show oxidising behaviour?