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Arrange the following equations in the c...

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`

A

231

B

123

C

321

D

312

Text Solution

Verified by Experts

The correct Answer is:
A
(i) `NaOH + H_(3)PO_(4) to NaH_(2)PO_(4) + H_(2)O`
(ii) `NaOH + NaH_(2)PO_(4) to Na_(2)HPO_(4) +H_(2)O`
(iii) `NaOH + Na_(2)HPO_(4) to Na_(3)PO_(4) + H_(2)O`
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