Reactivity Series
Bayani Gaba-gaba
Some metals fizz violently when dropped into water while others sit unchanged for centuries. This difference in behaviour is not random: it follows a pattern called the reactivity series. Once you know where a metal sits in that series, you can predict whether it will displace another metal from a compound, how it should be extracted from its ore, and even how to stop iron from rusting.
In this lesson you will learn the order of reactivity for common metals, explore displacement reactions as a tool for ranking metals, investigate the conditions for rusting and the methods used to prevent it, and master the definitions of oxidation and reduction in terms of both oxygen and electron transfer.
Manufura
- Understand how metals can be arranged in a reactivity series based on their reactions with water and dilute acids
- Understand how metals can be arranged in a reactivity series based on their displacement reactions
- Know the order of reactivity of these metals: potassium, sodium, lithium, calcium, magnesium, aluminium, zinc, iron, copper, silver, gold
- Know the conditions under which iron rusts
- Understand how the rusting of iron may be prevented by barrier methods, galvanising and sacrificial protection
- Understand the terms: oxidation, reduction, redox, oxidising agent and reducing agent in terms of gain or loss of oxygen and electrons
- Investigate reactions between dilute hydrochloric and sulfuric acids and metals
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan Reactivity Series. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which of the following metals reacts most vigorously with cold water? A) Iron B) Zinc C) Potassium D) Copper Answer: C
- A piece of iron is placed in copper(II) sulfate solution. What is observed? A) No change B) The solution turns green and copper forms on the iron C) The iron dissolves and the solution stays blue D) Bubbles of gas appear Answer: B
- In the reaction Mg + CuO -> MgO + Cu, which substance is the reducing agent? A) CuO B) MgO C) Cu D) Mg Answer: D
- Which conditions are needed for iron to rust? A) Water only B) Oxygen only C) Both water and oxygen D) Water, oxygen and an acid Answer: C
- Which method of rust prevention involves coating iron with zinc? A) Painting B) Alloying C) Galvanising D) Electroplating Answer: C
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
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Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Reactivity Series? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
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