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The pair of compounds which cannot exist...

The pair of compounds which cannot exist together in aqueous solution is:
`(I) NaH_(2)PO_(4)` and `NaHCO_(3)" "(II) Na_(2)CO_(3)` and `NaHCO_(3)`
`(III) NaOH` and `NaH_(2)PO_(2)" "(IV) NaHCO_(3)` and `NaOH`

A

I, II, III

B

II, III

C

III, IV

D

only IV

Text Solution

Verified by Experts

The correct Answer is:
D
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The pairs of compounds which cannot exist together in aquous solution are: (I) NaH_(2)PO_(4) and Na_(2)HCO_(3) (II) Na_(2)CO_(3) and NaOH (III) NaOH and NaH_(2)PO_(4) (IV) NaHCO_(3) and NaOH

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Which of the following salt/s of H_(3)PO_(3) exists ? (I)) NaH_(2)PO_(3) (II) Na_(2)HPO_(3) (III) Na_(3)PO_(3)

P_(4)+NaOH to PH_(3) uarr+NaH_(2)PO_(2)