Q: Which one of the following is not an example of a redox reaction?
(a)AlCl₃ + 3H₂O → Al(OH)₃ + 3HCl
(b)2NaH → 2Na + H₂
(c)4Fe + 3O₂ → 2Fe₂O₃
(d)CuSO₄ + Zn → Cu + ZnSO₄
Correct Answer: (a)
The correct answer is (b) '2NaH → 2Na + H₂'. This question from the General Studies domain tests knowledge of Miscellaneous.