Ahmad took a magnesium ribbon (cleaned) and burnt it on a flame. The white powder formed was taken in a test tube and water was added to it. He then tested the solution formed with red and blue litmus paper. What change was seen? Why?
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Magnesium is an alkali metal. When it is burnt in air it reacts with oxygen to form magnesium oxide. When water is added to magnesium oxide then it forms magnesium hydroxide. The equation is given below.
2MgO + H2O → 2MgOH
Magnesium hydroxide is alkaline in nature. So the red litmus paper turns blue when it is tested.
Hope it helps
2MgO + H2O → 2MgOH
Magnesium hydroxide is alkaline in nature. So the red litmus paper turns blue when it is tested.
Hope it helps
komal02:
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The reactor i.e H2O should be 2(H2O) and the product in the equation i.e 2MgOH is Wrong. It should be 2Mg(OH)2
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Answer:Magnesium is an alkali metal. When it is burnt in air it reacts with oxygen to form magnesium oxide. When water is added to magnesium oxide then it forms magnesium hydroxide. The equation is given below.
2MgO + H2O → 2MgOH
Magnesium hydroxide is alkaline in nature. So the red litmus paper turns blue when it is tested.
Read more on Brainly.in - https://brainly.in/question/1197057#readmore
Explanation:
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