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प्रश्न
Place the metals calcium, iron, magnesium and sodium in order of their activity with water, placing the most active first. Write the equation for each of the above metals which react with Water.
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उत्तर
Na Sodium 2Na + 2H2O → 2NaOH + H2
Ca Calcium Ca + 2H2O → Ca[OH]2 + H2
Mg Magnesium
Fe Iron
\[\ce{Mg +\underset{\text{(Boiling water)}}{H2O} -> MgO + H2}\]
\[\ce{3Fe + 4H2O (steam)⇌ Fe3O4 + 4H2}\]
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संबंधित प्रश्न
Write two physical properties of hydrogen.
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Discuss the occurrence of hydrogen in the universe and on the earth ?
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Name the products and write the equation for the reaction.
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A mixture of hydrogen & oxygen on burning, find application in welding & cutting metals.
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