Quiz On Calcium Carbonate

Zinc is the most reactive metal among the given options because it readily reacts with other substances, such as acids and oxygen. It can displace hydrogen from acids and oxygen from water, indicating its high reactivity. Platinum, on the other hand, is a noble metal and is known for its inertness and low reactivity. Copper is also less reactive compared to zinc, and hydrogen is not a metal but a nonmetal. Therefore, zinc is the correct answer as the most reactive metal among the given options.

A metal ore is a naturally occurring mineral or rock that contains a high enough concentration of metal elements to be economically extracted and processed. These ores are typically found in the Earth's crust and can be mined for their valuable metal content. They are the primary source of metals such as iron, copper, gold, silver, and aluminum, which are used in various industries and manufacturing processes. Ores are often processed through techniques like crushing, grinding, and smelting to extract the desired metal from the ore minerals.