Chemistry
Grade-10
Easy
Question
We call sodium carbonate a basic salt because it is a salt of :
- Strong acid and weak base
- Weak acid and strong base
- Weak acid and weak base
- Strong acid and strong base
Hint:
Sodium carbonate is derived from sodium hydroxide and carbonic acid.
The correct answer is: Weak acid and strong base
Sodium carbonate is a basic salt because it is a salt derived from a weak acid and strong base.
Sodium carbonate is derived from sodium hydroxide and carbonic acid.
2NaOH + H2CO3 
Na2CO3 + 2H2O
Sodium hydroxide is a strong base and carbonic acid is a weak acid.
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