1.

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

Answer»

(A) Na2CO

(A) Na2CO is formed from NaOH and H2COi.e. strong base and weak acid.

Hence Na2CO

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


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