What is the reducing agent in the following reaction? 2K + S - - > K2S
K***
S
K2S
None of these
right
To determine the reducing agent in a chemical reaction, we need to understand the concept of oxidation and reduction.
In the given reaction, 2K + S -> K2S, potassium (K) is being oxidized, and sulfur (S) is being reduced.
The reducing agent is the substance that undergoes oxidation and causes another substance to be reduced. In this case, the sulfur (S) is being reduced, which means it gains electrons. Therefore, potassium (K) is the reducing agent because it is causing the reduction of sulfur (S).
Therefore, the correct answer is K.