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State as to why (a)a solution of Na2CO3 is alkaline ?

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State as to why 

(a)a solution of Na2CO3 is alkaline ? 

(b)alkali metals are prepared by electrolysis of their fused chlorides ? 

(c) sodium is found to be more useful than potassium ? 

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1 Answer

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Because it contains sodium cations, which are strongly basic, and carbonate anions which are weakly acidic so the basic ions win over acidic ions, making Na2CO3

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