Question

question 5 of 10
in the redox reaction agno₃ + na → nano₃ + ag, which element has been reduced?

a. sodium (na)

b. nitrogen (n)

c. oxygen (o)

d. silver (ag)

Explanation:

Step1: Assign oxidation states to Ag

In $\text{AgNO}_3$, Ag has +1; in Ag, it has 0.

Step2: Check oxidation state change

Ag's oxidation state decreases from +1 to 0 (reduction).

Step3: Verify other elements

Na: 0→+1 (oxidation); N: +5→+5; O: -2→-2 (no change).

Answer:

D. Silver (Ag)