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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

What is Variable Valency ? Give Two Examples of Elements Showing Variable Valency.

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प्रश्न

What is variable valency ? Give two examples of elements showing variable valency.

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उत्तर

There are some elements with more than one valency. They are said to have variable valency, e.g. Iron, copper.

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पाठ 4: Atomic Structure - Exercise

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एस.पी. सिंह Concise Chemistry [English] Class 7 ICSE
पाठ 4 Atomic Structure
Additional questions | Q 10
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