Question

If oxidation potentials of four metals A, B, C and D
are 0.5 V, -0.76 V, +0.8 V and -1.32 V respectively.
Which of these will produce Hą gas when reacted
with HCI?
(1) Only C
(2) Only A and C
(3) Only B and D
(4) Only D​

Answer 1

Answer:

only B and D hai bhia or phala pata nhi hai