Which of the following are redox reactions?
A. `Zn+2HClrarrZnCl_(2)+H_(2)`
B. `Al(OH)_(3)+3HClrarrAlCl_(3)+3H_(2)O`
C. `Ag^(o+)+I^(-)rarrAgl`
D. Disproportionation of `Cu^(o+)` in aqueous solution.
A. `Zn+2HClrarrZnCl_(2)+H_(2)`
B. `Al(OH)_(3)+3HClrarrAlCl_(3)+3H_(2)O`
C. `Ag^(o+)+I^(-)rarrAgl`
D. Disproportionation of `Cu^(o+)` in aqueous solution.
Correct Answer – A::D
(a) and (b)