Class 7 Science e-Book's MCQs - Complete
Ionic Bonds Quiz App Download & e-Book PDF - 67
Apps:
MCQ 67:
Sodium becomes a cation when
- it loses a proton
- it gains a proton
- it loses an electron
- it gains an electron
c
Class 7 Science App & e-Book Tests PDF Download
Polyvinyl Chloride MCQs
Current and Energy MCQs
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Physical and Chemical Change MCQs
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Small Molecules MCQs
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7th Grade Science MCQs eBook Download
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