InterviewSolution
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InterviewSolution
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Give the decreasing `pH` of aqueous solution of the following compounds : a. `NaCl` , b. `MgCl_(2)` , c. `AlCl_(3)` , d. `PCl_(5)`A. `NaCl lt MgCl_(2) lt AlCl_(3)`B. `MgCl_(2) lt NaCl lt AlCl_(3)`C. `AlCl_(3) lt MgCl_(2) lt NaCl`D. `NaCl lt AlCl_(3) lt MgCl_(2)` |
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Answer» Correct Answer - A Cation size is decreasing in the order : ` Na^(+) gt Mg^(2+) gt Al^(3+)` `Al^(3+)` has maximum polarisation effect and `Na^(+) ` has minimum polarisation effect . The covalent nature is in the order : ` AlCl_(3) gt MgCl_(2) gt NaCl` |
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