d and f Block Elements Free downloadable pdf Notes ( Full Chapter) – Chemistry
12th class chemistry d and f block elements: -> Check out free pdf below Check out!! -> Class 11 Chemistry Full book pdf -> Class 12 Chemistry Full book pdf
iron
Iron -Important Transition Element-Chemistry
Iron: It is an important and useful metal. It was known to ancient Egyptians since 4000 BC. But its extraction started since 2000 BC. In India its extraction started since 600 BC. It belongs to group VIII-B of periodic table. Occurrence: After Aluminum it is most abundant metal on the earth crust. It is fourth …
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