Final answer:
B) Ethanol > AgNO3
Ethanol is more reactive than AgNO3.
Step-by-step explanation:
In this case, we are comparing the reactivity of AgNO3 (silver nitrate) and ethanol in a reaction. The reactivity of a substance can be determined by the ease with which it undergoes a chemical reaction. In general, inorganic compounds like AgNO3 are more reactive than organic compounds like ethanol.
Therefore, the correct arrangement of AgNO3 and ethanol in order of decreasing reactivity would be:
B) Ethanol > AgNO3