Divesh Asked :
Q. Sodium carbonate is a basic salt because it is a salt of
A. strong acid and strong base
B. weak acid and weak base
C. strong acid and weak base
D. weak acid and strong base
Answer - D. weak acid and strong base
Explanation - A salt is formed by two components . one component is a part of acid and other component is part of base. if base part is strong , then salt will be basic in nature and if acid part is strong, then salt will be acidic in nature.
here given, sodium carbonate (Na2CO3)
2Na^+ is came from sodium hydroxide (NaOH), a strong base
and (CO3)²- is came from carbonic acid (H2CO3), a weak acid
it is clear that, Na2CO3 is formed by strong base and weak acid. so, Na2CO3 is basic in nature or it is a basic salt.
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