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Consider only the species (at standard conditions) Br- , Br2, H+ , H2, La3+, Ca, Cd...

Consider only the species (at standard conditions) Br- , Br2, H+ , H2, La3+, Ca, Cd in answering the following questions. Give reasons for your answers. d. Which species can be reduced by Zn(s)?

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Answer #1

Answer :-

For the given question we need to know standard Reduction potential of some species.

(1) Br - already in highest reducing state so no question for reduction.

(2) Br2 - Yes. As the reduction potential of Br2 is more than. So, Zn can able to reduced Br2.

(3) H+ - Yes. As the reduction potential of H+ is more Zn so Zn can able to reduced H+.

(4) H2 - No. H2 has the formal charge 0 (zero) and it is already in its stable oxidation state.

(5) La3+ - No. As the reduction potential of La is less than Zn.

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