धातु और अधातु ।। Metal and Non Metal ।। परिचय।। introduction ।। By-Arvind Sir 9.0 ।। For you ,10वीं

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Sir aap science kitna Achha padhate h ❤❤

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Bahut hi lajwab class,agr aap English ke sath sath science ko v continue rkhte hai to bahut better rhega❤