Metals L, K, M and N and their are selectively reacted and yield the following data:
L^2+(aq) + 2K(s) = L(s) + 2K^+(aq)
K(s) +N^+(aq) = no change
K+(aq) + K(s) = K(s) +M^+(aq)
N(s) + M^+(aq) = N^+(aq) + M(s)
What is weaskest reducing agent?
To determine the weakest reducing agent, we need to look at the reactions and the trend of reduction potentials for the given metals.
From the given reactions:
L^2+(aq) + 2K(s) = L(s) + 2K^+(aq)
K+(aq) + K(s) = K(s) + M^+(aq)
N(s) + M^+(aq) = N^+(aq) + M(s)
We can see that metal K does not undergo any change in the reactions, which means it is not oxidized nor reduced. Therefore, it is not a reducing agent.
Comparing metals L, M, and N, we need to check the reduction potentials of these metals. The metal with the less positive/negative reduction potential is the weakest reducing agent.
However, without the reduction potentials provided, we cannot definitively determine the weakest reducing agent amongst L, M, and N.