Class 9 Chemistry e-Book's MCQs - Complete
Periodicity and Properties Quiz App Download & e-Book PDF - 59
Apps:
MCQ 59:
As we go from top to bottom in a group the shielding effect
- doesn't change
- decreases
- increases
- remains constant
c
Class 9 Chemistry App & e-Book Tests PDF Download
Branches of Chemistry MCQs
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Atomic and Mass Number MCQs
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Periodicity and Properties MCQs
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9th Grade Chemistry MCQs eBook Download
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