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Valency and Chemical Formula MCQs App & e-Book Download - 401
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MCQ: 401
In magnesium oxide, magnesium ion requires only one oxygen ion because of the
- valency of oxygen is −1
- valency of Oxygen is −2
- valency of magnesium is +1
- none of above
b
O Level Chemistry App & e-Book Tests PDF Download
Chemical Equations Test 412
Mineral Acids and General Properties Test 413
Redox Reaction and Oxidation Test 414
Mass Volume Time and Temperature Test 415
Salts and Hydrogen of Acids Test 416
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Chemical Symbols Test 419
Electrolyte and Non Electrolyte Test 420
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