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| Topic |
CH-XI-03-12,Determination of periods and group of elements,Pradeep Kshetrapal channel
| Lecture |
| Notes |
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| Topic |
CH-XI-03-13,Nomenclature of elements,Pradeep Kshetrapal channel
| Lecture |
| Notes |
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| Topic |
CH-XI-04-02,Electrovalent Bond,Pradeep Kshetrapal channel
| Lecture |
| Notes |
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