Question

1.
In which of the following reaction,reduction of hydrogen
takes place ?
1. Carbon Monoxide + Copper Oxide Carbon Dioxide
+ Copper
2. Copper Oxide + Hydrochlorid Acid Water +
Copper Chloride
3. Steam + Iron Hydrogen + Iron oxide
4. Hydrogen+ Iron Oxide Water + Iron

Answer 1

Answer:

2

3

Explanation:

in 2nd

hydrochloric acid reduces hydrogen to form water

in 3rd

Water reduces hydrogen to form hydrogen + iron oxide