Multiple Choice Questions on Which one of the following metals do not react with cold as well as hot water ........ for 10th Standard Preparation

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Multiple Choice Questions

Which one of the following metals do not react with cold as well as hot water ........

Chemistry Chapter- 3
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    Which one of the following metals do not react with cold as well as hot water?

    Na

    Incorrect Answer

    Ca

    Incorrect Answer

    Mg

    Incorrect Answer

    Fe

    Correct Answer
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    Explanation:

     Na, Ca and Mg are reactive metals and quickly react with water. At room temperature, the reaction of Fe is very slow but red hot iron reacts with steam to form Fe3O4 with hydrogen gas.

    3Fe   +    4H2O    →   Fe3O4   + 4 H2

    By: santosh
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