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Arrange the following in increasing orde...

Arrange the following in increasing order of covalent character -`NaCl, MgCl_(2), AlCl_(3)`.

Text Solution

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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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