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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Name three elements each whose ions have valency +1, +2 and +3 respectively

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प्रश्न

Name three elements each whose ions have valency +1, +2 and +3 respectively

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उत्तर

+1 = Hydrogen, Sodium, Potassium.
+2 = Calcium, Magnesium, Zinc.
+3 = Aluminium, Chromium, Ferric [Fe (III)]

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पाठ 4: Atomic Structure - Additional questions

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एस.पी. सिंह Concise Chemistry [English] Class 7 ICSE
पाठ 4 Atomic Structure
Additional questions | Q 11.1
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