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Uma took an aluminium strip and dipped it in freshly prepared ferrous sulphate solution taken in a test tube. After some time, she observed some changes. One of her correct observations is :
  • a)
    The green solution remained green
  • b)
    A black coating deposited on the aluminium strip
  • c)
    A brown gas is evolved
  • d)
    A colourless gas with smell of burning sulphur is evolved.
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Uma took an aluminium strip and dipped it in freshly prepared ferrous ...


Observation of Aluminium Strip in Ferrous Sulphate Solution

Black Coating Deposited on the Aluminium Strip
- When the aluminium strip is dipped in ferrous sulphate solution, a displacement reaction takes place where aluminium displaces iron from the ferrous sulphate solution.
- This reaction forms aluminium sulphate and iron as products.
- The iron produced from the reaction deposits on the surface of the aluminium strip, forming a black coating.
- This black coating is an indication of the displacement reaction that occurred between aluminium and iron in the ferrous sulphate solution.

Therefore, the correct observation made by Uma is that a black coating deposited on the aluminium strip.
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Uma took an aluminium strip and dipped it in freshly prepared ferrous sulphate solution taken in a test tube. After some time, she observed some changes. One of her correct observations is :a)The green solution remained greenb)A black coating deposited on the aluminium stripc)A brown gas is evolvedd)A colourless gas with smell of burning sulphur is evolved.Correct answer is option 'B'. Can you explain this answer?
Question Description
Uma took an aluminium strip and dipped it in freshly prepared ferrous sulphate solution taken in a test tube. After some time, she observed some changes. One of her correct observations is :a)The green solution remained greenb)A black coating deposited on the aluminium stripc)A brown gas is evolvedd)A colourless gas with smell of burning sulphur is evolved.Correct answer is option 'B'. Can you explain this answer? 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 Uma took an aluminium strip and dipped it in freshly prepared ferrous sulphate solution taken in a test tube. After some time, she observed some changes. One of her correct observations is :a)The green solution remained greenb)A black coating deposited on the aluminium stripc)A brown gas is evolvedd)A colourless gas with smell of burning sulphur is evolved.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Uma took an aluminium strip and dipped it in freshly prepared ferrous sulphate solution taken in a test tube. After some time, she observed some changes. One of her correct observations is :a)The green solution remained greenb)A black coating deposited on the aluminium stripc)A brown gas is evolvedd)A colourless gas with smell of burning sulphur is evolved.Correct answer is option 'B'. Can you explain this answer?.
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