Class 9 Chemistry e-Book's MCQs - Complete
Periodicity and Properties MCQ App Free Download & e-Book - 131
Apps:
MCQ: 131
When an electron is added in the valence shell than
- energy is absorbed
- energy is released
- energy remains same
- force of attraction increases
b
Class 9 Chemistry App & e-Book Tests PDF Download
Elements and Compounds Particles MCQs
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9th Grade Chemistry MCQs eBook Download
10th Grade Chemistry Test Questions
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Class 9 Chemistry Quiz with Answers
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