CBSE Class 10th Acid, bases and salts- The Chemical Nature and the Chemical Properties of the Bases

In this video we will learn about bases and their chemical properties.

• Bases are the chemical species which when dissolved in water furnish one or more hydroxide ions

• Base like NaOH reacts with active metal (Zn) to form a slat named as sodium zincate with liberation of hydrogen gas which highly combustible but non supportive in combustion 

2NaOH   +   Zn     →     Na₂ZnO₂   +   H₂

• Base like NaOH reacts with non metallic oxide (SO2) to form the corresponding slat named as sodium sulfite and water. 

2NaOH   +   SO₂     →     Na₂SO₃   +   H₂O

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