Question

Gallionella bacteria can get energy from the reaction fe2+ → fe3+. This reaction is an example of

Answer 1

The gallionella bacteria  reaction

that is Fe2+ →  Fe3+ is example of  oxidation reaction (answer A)

Explanation

oxidation reaction reaction occurs when electrons are lost during reaction by a molecule or ion or atom. when oxidation occurs  the oxidation state of the molecule or ion or atom increases. For this reason Fe2+ → Fe3+ is a oxidation reaction since the oxidation state move from oxidation state 2 to 3

Answer 2

The gallionella bacteria  reaction

that is Fe2+ →  Fe3+ is example of  oxidation reaction (answer A)

Explanation

oxidation reaction reaction occurs when electrons are lost during reaction by a molecule or ion or atom. when oxidation occurs  the oxidation state of the molecule or ion or atom increases. For this reason Fe2+ → Fe3+ is a oxidation reaction since the oxidation state move from oxidation state 2 to 3