Question

Give the chemical name and chemical formulae of the following:
(a) A reddish brown deposit formed on iron nail on exposure to damp air
(b) A greenish layer formed on copper articles on long exposure to air.
(c) A blackish tinge formed on silver vessels
(ii) Also mention condition/conditions necessary for their formation in each case.
(iii) Name the process involved and define it.


vry tuud hehe ol bta biio pe baat klega
me bole ho lahi hehe
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Answer 1

Maine us din be bola tha meet pe mai ne brk up kar chuka tha nandini se yaad hai muje

Terko mere se pyar hai ki nai T_T