Equimolar solutions of the following were prepared in water separately. Which one of the following solutions records the highest pH?
A
MgCl2
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B
CaCl2
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C
SrCl2
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D
BaCl2
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Solution
The correct option is CBaCl2 As the size of the cation is increased down the group among alkaline earth metal, basicity is increased (base has more value on ph scale) as barium is at bottom of the periodic table, in alkaline earth metals.