Question

The reaction $AgNO_{3}$ has a standard potential of $H_{2}$. This means.

• A. $NO_{3}^{-}$ can't replace hydrogen from acids
• B. $OH^{-}$ is a reducing agent
• C. $H_{2}$ is a oxidising agent
• D. Is a reducing agent

Answer 1

Answer: (B)

$OH^{-}$ is a reducing agent

Answer 2

Since $E_{Zn^{+ +}/Zn}^{o}$ is negative, so Zn has greater tendency to be oxidized than hydrogen. Hence it can act as reducing agent.