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Which has the highest pH? (a)NaCl (b)N...

Which has the highest `pH`?
(a)`NaCl`
(b)`Na_(2)CO_(3)`
(c)`NH_(4)Cl`
(d)`NaNO_(3)`

A

`CH_(3)COOK`

B

`Na_(2)CO_(3)`

C

`NH_(4)Cl`

D

`NaNO_(3)`

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