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Question

Less reactive metals such as aluminum, zinc and iron react with steam to liberate dihydrogen gas.


A

True

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B

False

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Solution

The correct option is A

True


Less reactive metals such as aluminum, zinc, and iron react with steam to liberate dihydrogen gas.
Metal+steamMetal oxide+Hydrogen

Examples: When magnesium reacts with steam, it produces magnesium oxide and hydrogen gas

Mg(s) + 2H2O(g) Mg(OH)2(s) + H2(g)

When Aluminum reacts with steam, it produces Aluminum oxide and hydrogen gas

2Al(s) + 3H2O(g) Al2O3(s) + 3H2(g)

When Iron reacts with steam, it produces Iron Oxide and hydrogen gas

3Fe(s) + 4H2O(g) Fe3O4(s) + 4H2(g)


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