The standard reduction potential of $Ag^+/Ag$ electrode is +0.80 V. Choose the correct statement based on this information.

$Ag^+/Ag$ couple is a weaker reducing agent than $H^+/H_2$ couple

The correct answer is Option (2) → $Ag^+/Ag$ couple is a weaker reducing agent than $H^+/H_2$ couple

The standard reduction potential of the Ag⁺/Ag couple is +0.80 V, which is greater than that of the standard hydrogen electrode (SHE = 0.00 V).

Key implications:

• Higher $E^\circ$ ⇒ greater tendency to be reduced
• Therefore, Ag⁺ is reduced more easily than H⁺
• Consequently, Ag (metal) is less easily oxidised than H₂
• Hence, Ag is a weaker reducing agent than H₂

Now check the statements:

• Ag⁺/Ag couple is a stronger reducing agent than H⁺/H₂ couple  -- Incorrect
• Ag⁺/Ag couple is a weaker reducing agent than H⁺/H₂ couple --correct
• Ag can be easily oxidised as compared to H₂--  incorrect
• Ag⁺/Ag will act as anode when coupled with SHE--  incorrect