वायु में थोड़ी देर रखने पर किसी धातु के ऊपर हरे रंग के बेसिक कार्बोनेट की परत जम जाती है । वह धातु है ? - When kept in air for a while, a layer of green basic carbonate gets deposited on top of a metal. is that metal? - Vayu Me thodi Der Rakhne Par Kisi Dhatu Ke Upar Hare Rang Ke basic Carbonate Ki Parat Jam Jati Hai . Wah Dhatu Hai ? General Science in hindi, Chemistry chandi question answers in hindi pdf nickel questions in hindi, Know About tamba General Science online test General Science notes in hindi quiz book Jasta
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