1.

Which of following compound is alkaline in aqueous medium. (A) Na2CO3 (B) NaCl (C) H2CO3 (D) CuSO4

Answer»

(A) Na2CO3 

(A) Na2CO3  is formed from NaOH and H2CO3 i.e. strong base and weak acid.

Hence Na2CO3 

ans is a....
Na2CO3 , upon hydrolising breaks into NaOH and 
H2CO3....


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