The basic character of MgO,SrO & NiO increases in the order
SrO<MgO<NiO
NiO<MgO<SrO
MgO<NiO<SrO
NiO<SrO<MgO
As we learnt
Periodic trend in valence of atom -
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Basic character of oxides increases with increase in electropositive character
50 mL of 0.2 M ammonia solution is treated with 25 mL of 0.2 M HCl. If pKb of ammonia solution is 4.75, the pH of the mixture will be : Option: 1 3.75 Option: 2 4.75
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