5 Questions
What is the product formed when metals react with dilute acids?
Salts and hydrogen
Which metal shows a violent reaction with dilute acids?
Sodium
Which of the following metals does not react with dilute acids?
Silver
What is the vigorousness of the reaction as we move down the reactivity series?
It decreases
Which of the following equations represents the reaction between sodium and hydrochloric acid?
2Na + 2HCl → 2NaCl + H₂
Study Notes
Reaction with Acids
- Metals react with dilute acids like hydrochloric acid and sulphuric acid to form corresponding salts and liberate hydrogen.
- Vigorousness of the reaction decreases as we move down the reactivity series.
- Sodium and potassium react violently with acids.
- Magnesium and aluminium react quite vigorously with acids.
- Iron and zinc show moderate reaction with acids.
- Tin and lead react slowly with acids.
- Silver and gold do not react with acids at all.
Reaction Examples
- 2Na (Sodium) + 2HCl (Hydrochloric acid) → 2NaCl (Sodium chloride) + H₂ (Hydrogen)
- Mg (Magnesium) + 2HCl (Hydrochloric acid) → MgCl (Magnesium chloride) + H₂ (Hydrogen)
- Zn (Zinc) + 2HCl (Hydrochloric acid) → ZnCl (Zinc chloride) + H₂ (Hydrogen)
Special Cases
- Some metals react only with concentrated acids.
This quiz covers the reactions of metals with dilute acids, including the vigour of reactions and the formation of salts and hydrogen. It also explores the reactivity series of metals.
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