O Level Chemistry e-Book's MCQs - Complete
Chemical Symbols App MCQ Download & e-Book - 660
Apps:
MCQ:
If the valency of both Calcium and Sulphate ion is 2, the formula of calcium sulfate will be
- CaSO3
- CaSO4
- Ca2(SO4)2
- Ca2SO4
b
O Level Chemistry App & e-Book Tests PDF Download
College Chemistry Test 671
Chemistry Reactions Test 672
Salts and Hydrogen of Acids Test 673
Electrical Devices and Circuit Symbols Test 674
Molecules and Macromolecules Test 675
Chemical to Electrical Energy Test 676
Dry Cells Test 677
Electrolyte and Non Electrolyte Test 678
Kinetic Particle Theory Test 679
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O Level Chemistry MCQs eBook Download
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