It is because copper is less reactive than Zinc,so it is not able to replace it from its compound. Therefore, the metal with the lowest reactivity is at. If we take copper sulphate solution and add Zinc to it, it replaces Copper from Copper Sulphate to form Zinc Sulphate (which is a colourless solution) However if we do the opposite, there is no reaction.
We’d expect the potassium to react explosively (in reality you would never do this in a school laboratory as it is too dangerous), while the magnesium would bubble vigorously and the zinc would form bubbles very slowly. A series in which metals are arranged in order of decreasing reactivity is called a reactivity series. More reactive metals have a greater tendency to lose. Expert Answer: The arrangement of metals in a vertical column in the order of decreasing reactivities is called reactivity series of metals. The reactivity series In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom. Let’s say we carry out the experiment described above by adding potassium, magnesium and zinc into test tubes containing dilute sulfuric acid. Asked by saradamahapatra9999 30th Jan, 2019, 11:15: AM. The faster the bubbles are given off, the faster the rate of reaction and the more reactive the metal. The bubbles are hydrogen gas and can be confirmed using a lit splint, which will produce a ‘squeaky pop’ when the hydrogen burns. All metallic elements with reactivity over five transverse lines (marked by red solid lines). It is important that each metal has the same surface area because this will affect the rate of reaction.Ĭount the number of bubbles produced in a given time. Reactivity series of pure metals in various aqueous environments. Add equal volumes of dilute hydrochloric acid or dilute sulfuric acid into a series of test tubes then add a equal mass of metal to each test tube.
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