Select the correct combination -
(1) The aqueous solutions of each Na,BO, and
Na3PO4- Acidic nature
(2) The aqueous solutions of each Na,BO, and
CH,COONa - Basic nature
(3) The aqueous solutions of each CH,COONa
and NaCN - Acidic nature
(4) The aqueous solutions of each Na, PO, and
NH,CI- Acidic nature
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