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Even though zinc has a valency of 2 and Aluminium has a valency of 3 then why is aluminum placed above zinc in reactivity series?
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Even though zinc has a valency of 2 and Aluminium has a valency of 3 t...
Reasons for Aluminum being placed above Zinc in the reactivity series:
Electronegativity:
- Aluminum has a higher electronegativity compared to Zinc. This means that Aluminum has a greater tendency to attract electrons towards itself, making it more reactive than Zinc.
Formation of Stable Oxides:
- Aluminum forms a protective oxide layer (Al2O3) on its surface when exposed to air, which prevents further corrosion. This oxide layer acts as a barrier, making it more resistant to corrosion and increasing its reactivity.
Reaction with Acids:
- Aluminum reacts vigorously with acids like hydrochloric acid to produce hydrogen gas and aluminum chloride. This reaction is more exothermic and faster compared to Zinc's reaction with acids, indicating higher reactivity.
Thermal Stability:
- Aluminum is more thermally stable compared to Zinc. It does not undergo thermal decomposition easily, making it more reactive in high-temperature environments.
Overall Reactivity:
- When considering all these factors together, Aluminum's overall reactivity is higher than Zinc, even though Zinc has a valency of 2 and Aluminum has a valency of 3. This is why Aluminum is placed above Zinc in the reactivity series.
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Even though zinc has a valency of 2 and Aluminium has a valency of 3 then why is aluminum placed above zinc in reactivity series?
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Even though zinc has a valency of 2 and Aluminium has a valency of 3 then why is aluminum placed above zinc in reactivity series? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Even though zinc has a valency of 2 and Aluminium has a valency of 3 then why is aluminum placed above zinc in reactivity series? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Even though zinc has a valency of 2 and Aluminium has a valency of 3 then why is aluminum placed above zinc in reactivity series?.
Even though zinc has a valency of 2 and Aluminium has a valency of 3 then why is aluminum placed above zinc in reactivity series? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Even though zinc has a valency of 2 and Aluminium has a valency of 3 then why is aluminum placed above zinc in reactivity series? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Even though zinc has a valency of 2 and Aluminium has a valency of 3 then why is aluminum placed above zinc in reactivity series?.
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