Write the reaction five metals with …

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Write the reaction five metals with water and acid

Posted by Saurabh Kumar 5 years, 10 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

Reaction of Metals with Water: Metals react with water to produce metal oxides with the release of hydrogen gas. But all metals do not react with water.

Metal + Water → Metal oxide + Hydrogen

Metal oxides that are soluble in water dissolve in it to further form metal hydroxide.

Metal oxide + Water → Metal hydroxide

Metals such as sodium and potassium react vigorously with cold water to lead to evolution of hydrogen, which immediately catches fire producing a large quantity of heat.

2Na + 2H₂O → 2NaOH + H₂ + Heat

2K + 2H₂O → 2KOH + H₂ + Heat

Metals such as aluminium, zinc and iron do not react with cold or hot water, but they react with steam to form metal oxides and hydrogen.

2Al + 3H₂O → Al₂O₃ + 3H₂ + Heat

3Fe + 4H₂O → Fe₃O₄+ 4H₂ + Heat

Reactions of Metals with Acids: Metals react with acids to form salt and hydrogen gas.

Metal + Dilute acid → Salt + Hydrogen

Metals react with dilute hydrochloric acid to give metal chloride and hydrogen gas. Example - Magnesium reacts violently with dilute hydrochloric acid to form magnesium chloride and hydrogen.

Mg + 2HCl → MgCl₂+ H₂

Metals react with sulphuric acid to form metal sulphate and hydrogen gas.

Fe + H₂SO₄ → FeSO₄+ H₂

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CBSE > Class 10 > Science