O Level Chemistry e-Book's MCQs - Complete
Proton and Nucleon Number App MCQs Download & e-Book - 720
Apps:
MCQ:
If nucleon and proton number of argon is 40 and 18 respectively, the respective number of electrons and neutrons will be
- 22 and 40
- 18 and 22
- 18 and 40
- 22 and 28
b
O Level Chemistry App & e-Book Tests PDF Download
Valency and Chemical Formula Test 731
Kinetic Particle Theory Test 732
Basic Acidic Neutral and Amphoteric Test 733
Change of State Test 734
Chemical Reactions Test 735
Percent Composition of Elements Test 736
Chemical Symbols Test 737
Endothermic Reactions Test 738
Valency and Chemical Formula Test 739
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O Level Chemistry MCQs eBook Download
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