Give any three chemical properties of acid .Explain with example
Answers
Answer:
Chemical properties of acids: Acids react with reactive metals. Acid + metal → salt + hydrogen. Copper and silver do not react with dilute acid. Acids react with bases. Acid + base → salt + water. Acids react with carbonates. Acid + carbonate → salt + water + carbon dioxide.
(i) They react with metals to give out hydrogen gas e.g.,
Zn + 2HCl → ZnCl2 + H2
Zinc + Hydrochloric acid → Zinc Chloride + Hydrogen
(ii) They react with bases to form salt and water e.g.,
2NaOH + H2SO4 → Na2SO4 + 2H2O
Sodium hydroxide + Sulphuric acid → Sodium sulphate Water
(iii) They react with metal carbonates to liberate CO2 gas
Na2CO3 + 2HCI → 2NaCI + H2O + CO2
Sodium carbonate + Hydrochloric acid → Sodium chloride + Carbon dioxide
Answer:
Chemical Properties of Acid and Bases
The metals combine with remaining part of acids to form a salt. For example reaction of sulphuric acid with zinc. Alkalis (bases that are soluble in water) react with the metal to produce salt and hydrogen gas. For example reaction of zinc with sodium hydroxide.
(i) They react with metals to give out hydrogen gas e.g., Zn + 2HCl → ZnCl2 + H2 Zinc + Hydrochloric acid → Zinc Chloride + Hydrogen (ii) They react with bases (i) They react with metals to give out hydrogen gas e.g.,
(i) They react with metals to give out hydrogen gas e.g., Zn + 2HCl → ZnCl2 + H2
(i) They react with metals to give out hydrogen gas e.g., Zn + 2HCl → ZnCl2 + H2 (ii) They react with bases to form salt and water e.g.,
(i) They react with metals to give out hydrogen gas e.g., Zn + 2HCl → ZnCl2 + H2 (ii) They react with bases to form salt and water e.g.,2NaOH + H2SO4 → Na2SO4 + 2H2O
(i) They react with metals to give out hydrogen gas e.g., Zn + 2HCl → ZnCl2 + H2 (ii) They react with bases to form salt and water e.g.,2NaOH + H2SO4 → Na2SO4 + 2H2OSodium hydroxide + Sulphuric acid → Sodium sulphate Water
(i) They react with metals to give out hydrogen gas e.g., Zn + 2HCl → ZnCl2 + H2 (ii) They react with bases to form salt and water e.g.,2NaOH + H2SO4 → Na2SO4 + 2H2OSodium hydroxide + Sulphuric acid → Sodium sulphate Water (iii) They react with metal carbonates to liberate CO2 gas
(i) They react with metals to give out hydrogen gas e.g., Zn + 2HCl → ZnCl2 + H2 (ii) They react with bases to form salt and water e.g.,2NaOH + H2SO4 → Na2SO4 + 2H2OSodium hydroxide + Sulphuric acid → Sodium sulphate Water (iii) They react with metal carbonates to liberate CO2 gas Na2CO3 + 2HCI → 2NaCI + H2O + CO2
(i) They react with metals to give out hydrogen gas e.g., Zn + 2HCl → ZnCl2 + H2 (ii) They react with bases to form salt and water e.g.,2NaOH + H2SO4 → Na2SO4 + 2H2OSodium hydroxide + Sulphuric acid → Sodium sulphate Water (iii) They react with metal carbonates to liberate CO2 gas Na2CO3 + 2HCI → 2NaCI + H2O + CO2 Sodium carbonate + Hydrochloric acid → Sodium chloride + Carbon dioxide