Write the properties of acids and bases 5 chemical and 5 physical practically
Answers
Answer:
Chemical Properties of Acid and Bases
1. Reactions of Acids and Bases with Metals
When a metal reacts with an acid, it generally displaces hydrogen from the acids. This leads to the evolution of hydrogen gas. The metals combine with remaining part of acids to form a salt. For example reaction of sulphuric acid with zinc.
H2SO4 + Zn → ZnSO4 + H2
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.
2 NaOH + Zn → Na2ZnO2 + H2Properties Acids Bases
Colour Mineral acids are colourless liquids but sometimes sulphuric acid becomes yellow due to impurities. Some organic acids are white coloured solids.
Examples: benzoic acid
Bases are colourless except the hydroxides of iron and copper.
Taste Sour Bitter
Touch – Slippery
Solubility Soluble in water Some bases are soluble in water.
Explanation:
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