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Give the decreasing pH of aqueous soluti...

Give the decreasing `pH` of aqueous solution of the following compounds :
a. `NaCl` , b. `MgCl_(2)` , c. `AlCl_(3)` , d. `PCl_(5)`

Text Solution

Verified by Experts

Since anions are same, so higher the charge on the ions, more covalent and more acidic and hence less `pH`.
So, the decreasing order of `pH` is
`underset(("decreasing order of basic character"),("Increasing order of acidic or"))overset(overset(1+)(NaCl)gtoverset(2+)(MgCl_(2))gt overset(3+)(AlCl_(3)) gt overset(5+)(PCl_(5)))(rarr) [a. gt b. gt c. gt d.]`
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