s-Block ElementsHard

Question

The pairs of compound which cannot exist together in aqueous solution are :

Options

A.NaH2 PO4 and Na2HPO4
B.Na2 CO3 and NaHCO3
C.NaOH and NaH2 PO4
D.NaHCO3 and NaOH.

Solution

(C) NaOH & NaH2 PO4  produces Na2HPO4 and Na3PO4
(D) NaHCO3 & NaOH produces Na2CO3

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