Which of the following is not a redox reaction ?

Options

A. Rusting or ion
B. Evaporation of water
C. Buring og gasoline
D. Human respiration

Answer

B

Explanation

It is a physical change
`H_2O(1) rarr H_2O(g)`
In rusting of iron. Fe is oxidized to `Fe_2O_3.xH_2O` (called rust). In burning or gasoline, carbon of hydrocarbon is oxidized to `CO_(2)`. In human respiration, C of glucose is oxidized to `CO_(2)`.