Learn the reactivity series of metal through this simple yet effective mnemonic. The metals in the middle of the activity series (Zn, Fe, Pb, etc.) Metals are arranged in the reactivity series on the basis of displacement experiments performed on them. Cinnabar (HgS) is the ore of mercury. Both highly electropositive and highly electronegative elements have a strong tendency to react. CBSE Class 10 Science Important Questions Chapter 3 Metals and Non-Metals ... placed below hydrogen in the series, if will not evolve hydrogen 8. Copper glance (Cu 2 S) is the ore of copper. Question 77. Reactivity Trend in the Periodic Table . Reactivity series is the series of metals based on their reactivity from highest to lowest. The way, metals like sodium, magnesium and iron react with air and water is an indication of their relative positions in the ‘reactivity series’. Reduction: Heating of oxides of metals to turn them into metal is known as Reduction. 3. Answer: Na Produced by the electrolysis of molten NaCl. You know that metals can be separated from molten compounds of metals by electrolysis. The organization of elements on the periodic table allows for predictions concerning reactivity. They are found in the earth’s crust mainly as oxides, sulphides or carbonates. For example, magnesium metal can displace zinc ions in a solution. A reactivity series is typically a vertically presented model with the most-reactive element placed at the top of the series and … Extracting Metals in the Middle of the Activity Series. Arrange the metals gold, copper, iron and magnesium in order of their increase in reactivity. are moderately reactive. It is also known as activity series. Rusting is an oxidation reaction. Define activity series of metals. A more reactive metal will displace a less reactive metal from a compound. Alloys. Mg(s) + Zn 2+ → → Zn(s) + Mg 2+ The interval between metals in the reactivity series of metals represents the reactivity of those metals towards each other. Extraction of Metals Class 10 Question 1. It is easy to extract metal from their oxide, as compared to their sulphides and carbonates. ... Reactivity Series of Metals and Non-metals. (i) Extraction of Metals of Least Reactivity: Mercury and copper, which belong to the least reactivity series, are often found in the form of their sulphide ores. The arrangement of metals in the order of decreasing reactivities is called the reactivity series of metals. The reactivity series allows us to predict how metals will react. A list of metals arranged in the order of their decreasing reactivity (activity) is called reactivity series. Each element in the reactivity series can be replaced from a compound by any of the elements above it. 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