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Match the elements given in Column I wit...

Match the elements given in Column I with the properties mentioned in Column II.
`{:(Column I,Column II),(A.Li,1."Insoluble sulphate"),(B.Na,2."Strongest monoacidic base"),(C.Ca,3."Most negative" E^(Theta) "value among alkali metals"),(D.Ba,4."Insoluble oxalate"),(,5.6s^(2)"outer electronic configuration"):}`

Text Solution

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`(i) to (c) , (ii) to (b) , (iii) to (d) , (iv) to (a,e)`
Due to lower `Delta_(i) H_(1)` of Na (`496 kJ mol^(-1))` than Li `(520 kJ mol^(-1))` , Na is a stronger monoacidic base , than Li, `BaSO_(4)` is insoluble while barium oxalate is somewhat soluble , therefore , (iii) matches with (d) .
Similarly , barium sulphate is insoluble but calcium sulphate is somewhat soluble .
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