1.

Arrange the following equations in the correct sequence to obtain a normal salt. (a) NaOH + Na_(2)HPO_(4) rarr Na_(3)PO_(4) + H_(2)O (b) NaOH + H_(3)PO_(4) rarr NaH_(2)PO_(4) + H_(2)O (c) NaOH + NaH_(2)PO_(4) rarr Na_(2)HPO_(4) + H_(2)O

Answer»

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Solution :(i) `NAOH + H_(3)PO_(4) rarr NaH_(2)PO_(4) + H_(2)O`
(ii) `NaHO + NaH_(2)PO_(4) rarr Na_(2)HPO_(4) + H_(2)O`
(iii) `NaOH + Na_(2)HPO_(4) rarr Na_(3)PO_(4) + H_(2)O`


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