Question

Identify a substance which can oxidize Cd(s) to Cd2+(aq) but cannot oxidize Pb(s) to Pb2+(aq).

a. Brâ‚‚(1)
b. Co2+(aq)
c. S(s)
d. Ag+(aq)

Answer 1

Ag+ can oxidize Cd(s) to Cd2+(aq), but Br₂ cannot oxidize Pb(s) to Pb2+(aq).

Step-by-step explanation:

To identify a substance that can oxidize Cd(s) to Cd2+(aq) but cannot oxidize Pb(s) to Pb2+(aq), we need to look at the reduction potentials of these substances. Reduction potentials indicate the tendency of a substance to gain electrons and be reduced.

In this case, the substance that can oxidize Cd(s) to Cd2+(aq) is d. Ag+(aq).

Ag+ has a higher reduction potential than Cd2+, so it can accept electrons from Cd(s) and oxidize it to Cd2+(aq).

The substance that cannot oxidize Pb(s) to Pb2+(aq) is a. Br₂(1).

Br₂ has a lower reduction potential than Pb2+, so it cannot accept electrons from Pb(s) and oxidize it to Pb2+(aq).