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3. Explain why an aqueous solution of sodium sulphate is neutral while an aqueous solution ofsodium carbonate is basic in nature.

Answer»

Because Sodium sulphate salt is made by reaction of sulphuric acid (strong acid) the sodium hydroxide (strong base) , thus on combining the opposite effects of acid and base neutralize each others effect completely leading to the formation of a neutral salt.Sodium carbonate salt is made of reaction of carbonic acid and sodium hydroxide . on combining the basic character will be more as a week acid can not neutralize a strong base completely . so the salt formed is basic in nature.



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