Name: Chemical Properties of Bases
Uploaded: 2019-07-19
Duration: 4 min 4 s
Description: You are already familiar with the physical properties of bases that they are bitter to taste and soapy to touch. Now explore the chemical properties of bases.

Question

Give the chemical properties of acids and bases by giving balanced chemical equations.

Accepted Answer

Some important chemical properties of acids are as follows:

Reactions with metals: Some metals displace hydrogen from the strong acids. These are called active metals. $Zn + H_{2} {SO}_{4} \to {ZnSO}_{4} + H_{2}$

Reactions with metal oxides: All dilute mineral acids react with metallic oxides to form their respective metallic salts and water. $CaO + 2 {HNO}_{3} \to Ca ({NO}_{3})_{2} + H_{2} O$

Reaction with metal carbonates: This reaction also comes under neutralisation but is accompanied by the release of ${CO}_{2}$ gas along with the formation of salt and water. ${CaCO}_{3} + 2 HCl \to {CaCl}_{2} + H_{2} O + {CO}_{2}$

Some important chemical properties of bases are as follows:

Action of heat

1. Some hydroxides melt on strong heating. They do not undergo decomposition.
Example: $NaOH, KOH$

2. Other metal hydroxides undergo decomposition on strong heating.
Example:

$Ca (OH)_{2} \to CaO + H_{2} O$

3. Ammonium hydroxide decomposes rapidly to give ammonia gas and water upon slight heating.
Example:

${NH}_{4} OH \to {NH}_{4} + H_{2} O$

Give the chemical properties of acids and bases by giving balanced chemical equations.

Important Questions on Acids, Bases and Salts

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