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Copper substances when exposed to air gains a green coating due to the formation of : - ताम्र पदार्थ हवा में खुले रहने पर किसके निर्माण के कारण हरे रंग के हो जाते हैं?

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In Hindi & English.


Copper substances when exposed to air gains a green coating due to the formation of : - ताम्र पदार्थ हवा में खुले रहने पर किसके निर्माण के कारण हरे रंग के हो जाते हैं?






 
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