Chemistry · S and p Block Elements
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Group IB is called the coinage metals. Which one is not true about this group?
- A
Have powerful reducing agents
- B
Have positive reduction potential
- C
Cannot displace H₂ from dilute acids
- D
Lies below SHE in electrochemical series
Have powerful reducing agents – Incorrect. Coinage metals (Cu, Ag, Au) are not strong reducing agents; they have low reactivity and tend to resist oxidation
Have powerful reducing agents – Incorrect. Coinage metals (Cu, Ag, Au) are not strong reducing agents; they have low reactivity and tend to resist oxidation
Have positive reduction potential – Correct. These metals have positive standard reduction potentials, meaning they prefer to remain in their metallic form.
Cannot displace H₂ from dilute acids – Correct. Since they have positive reduction potentials, they do not react with dilute acids to release hydrogen gas.
Lies below SHE in electrochemical series – Correct. They are below the standard hydrogen electrode (SHE) because they are less reactive.
Tagged under Chemistry · S and p Block Elements · 2023