Name two elements each, whose ions have valency +1,+2 and +3 respectively.
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Name two elements each, whose ions have valency +1,+2 and +3 respectively.
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Answer:
+1 = Hydrogen, Sodium, Potassium.
+2 = Calcium, Magnesium, Zinc.
+3 = Aluminium, Chromium, Ferric [Fe (III)]
Answer:
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